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  534.     </div>
    535. 

  535.     
    536. 

  536.     <div class="panel panel-default">
    537. 

  537.         
    538. 

  538.         <div class="panel-heading">
    539. 

  539.             <h3 class="panel-title">NODE&NPM</h3>
    540. 

  540.         </div>
    541. 

  541.         
    542. 

  542. 

  543.         <div class="list-group">
    544. 

  544.             
    545. 

  545.     
    546. 

  546.         
    547. 

  547.         <a href="../../node/0.html" class="list-group-item ">
    548. 

  548.         
    549. 

  549. 

  550.             
    551. 

  551. 

  552.             
    553. 

  553.             <i class="octicon octicon-chevron-right"></i>
    554. 

  554.             
    555. 

  555. 

  556.             node
    557. 

  557. 

  558.         
    559. 

  559.         </a>
    560. 

  560.         
    561. 

  561. 

  562.         
    563. 

  563.     
    564. 

  564.         
    565. 

  565.         <a href="../../node/npm/0.html" class="list-group-item ">
    566. 

  566.         
    567. 

  567. 

  568.             
    569. 

  569. 

  570.             
    571. 

  571. 

  572.             npm
    573. 

  573. 

  574.         
    575. 

  575.         </a>
    576. 

  576.         
    577. 

  577. 

  578.         
    579. 

  579.     
    580. 

  580. 

  581.         </div>
    582. 

  582.     </div>
    583. 

  583.     
    584. 

  584.     <div class="panel panel-default">
    585. 

  585.         
    586. 

  586. 

  587.         <div class="list-group">
    588. 

  588.             
    589. 

  589.     
    590. 

  590.         
    591. 

  591.         <a href="../../other/faq.html" class="list-group-item ">
    592. 

  592.         
    593. 

  593. 

  594.             
    595. 

  595. 

  596.             
    597. 

  597. 

  598.             FAQ
    599. 

  599. 

  600.         
    601. 

  601.         </a>
    602. 

  602.         
    603. 

  603. 

  604.         
    605. 

  605.     
    606. 

  606.         
    607. 

  607.         <a href="../../other/examples.html" class="list-group-item ">
    608. 

  608.         
    609. 

  609. 

  610.             
    611. 

  611. 

  612.             
    613. 

  613. 

  614.             Examples
    615. 

  615. 

  616.         
    617. 

  617.         </a>
    618. 

  618.         
    619. 

  619. 

  620.         
    621. 

  621.     
    622. 

  622. 

  623.         </div>
    624. 

  624.     </div>
    625. 

  625.     
    626. 

  626. 

  627. 

  628. 

  629.                     </div>
    630. 

  630.                     <div class="col-md-9">
    631. 

  631.                         
    632. 

  632. <div id="book-search-results">
    633. 

  633.     <div class="search-noresults">
    634. 

  634.     
    635. 

  635.                             
    636. 

  636. 

  637.                             <div class="gb-markdown book-page-inner">
    638. 

  638.                                 <h3 id="ngif">ngIf</h3>
    639. 

  639. <blockquote>
    640. 

  640. <p><strong> &#x5982;&#x679C;&#x4F60;&#x5E0C;&#x671B;&#x6839;&#x636E;&#x4E00;&#x4E2A;&#x6761;&#x4EF6;&#x6765;&#x51B3;&#x5B9A;&#x663E;&#x793A;&#x6216;&#x9690;&#x85CF;&#x4E00;&#x4E2A;&#x5143;&#x7D20;,&#x53EF;&#x4EE5;&#x4F7F;&#x7528; ngIf &#x6307;&#x4EE4;&#x3002;&#x8FD9;&#x4E2A;&#x6761;&#x4EF6;&#x662F;&#x7531;&#x4F60;&#x4F20;&#x7ED9;&#x6307;&#x4EE4;&#x7684;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x7ED3;&#x679C;&#x51B3;&#x5B9A;&#x7684;&#x3002;<br>
    641. 

  641. </strong> &#x5982;&#x679C;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x7ED3;&#x679C;&#x8FD4;&#x56DE;&#x7684;&#x662F;&#x4E00;&#x4E2A;&#x5047;&#x503C;,&#x90A3;&#x4E48;&#x5143;&#x7D20;&#x4F1A;&#x4ECE;DOM&#x4E0A;&#x88AB;&#x79FB;&#x9664;&#x3002;</p>
    642. 

  642. </blockquote>
    643. 

  643. <pre><code class="lang-html"># &#x4F8B;&#x5B50;&#xFF1A;
    644. 

  644. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span> = &quot;<span class="hljs-attr">false</span>&quot; &gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    645. 

  645. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span> = &quot;<span class="hljs-attr">a</span> &gt;</span> b&quot; &gt;<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    646. 

  646. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span> = &quot;<span class="hljs-attr">str</span> =<span class="hljs-string">=</span> &apos;<span class="hljs-attr">yes</span>&apos;&quot; &gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    647. 

  647. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span> = &quot;<span class="hljs-attr">myFunc</span>()&quot; &gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    648. 

  648. </code></pre>
    649. 

  649. <h3 id="ngswitch">ngSwitch</h3>
    650. 

  650. <blockquote>
    651. 

  651. <p>** &#x5B9E;&#x9645;&#x4F5C;&#x7528;&#x540C;&#x7B49;&#x4E8E; switch&#x8BED;&#x53E5;</p>
    652. 

  652. </blockquote>
    653. 

  653. <pre><code class="lang-html"># &#x901A;&#x8FC7;2&#x7EC4;&#x5B9E;&#x4F8B;&#x8FDB;&#x884C;&#x6BD4;&#x8F83;
    654. 

  654. ## ngIf
    655. 

  655.   &#x6839;&#x636E;&#x540C;&#x503C;&#x4E0D;&#x540C;&#x6761;&#x4EF6;&#x6E32;&#x67D3;&#x4E0D;&#x540C;&#x5143;&#x7D20;
    656. 

  656.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;container&quot;</span>&gt;</span>
    657. 

  657.       <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar == &apos;A&apos;&quot;</span>&gt;</span>Var is A<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    658. 

  658.       <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar == &apos;B&apos;&quot;</span>&gt;</span>Var is B<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    659. 

  659.       <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar != &apos;A&apos; &amp;&amp; myVar != &apos;B&apos;&quot;</span>&gt;</span>Var is something else<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    660. 

  660.     <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    661. 

  661. 

  662.   &#x589E;&#x52A0;&#x6761;&#x4EF6;&#x4E0E;&#x503C;
    663. 

  663.   <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;container&quot;</span>&gt;</span>
    664. 

  664.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar == &apos;A&apos;&quot;</span>&gt;</span>Var is A<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    665. 

  665.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar == &apos;B&apos;&quot;</span>&gt;</span>Var is B<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    666. 

  666.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar == &apos;C&apos;&quot;</span>&gt;</span>Var is C<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    667. 

  667.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngIf</span>=<span class="hljs-string">&quot;myVar != &apos;A&apos; &amp;&amp; myVar != &apos;B&apos; &amp;&amp; myVar != &apos;C&apos;&quot;</span>&gt;</span>Var is something else<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    668. 

  668.   <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    669. 

  669. ### ngSwitch
    670. 

  670. &#x6539;&#x53D8;&#x4E0A;&#x8FF0;&#x60C5;&#x51B5;&#xFF0C;&#x5B98;&#x65B9;&#x52A0;&#x5165; ngSwitch
    671. 

  671.   &#x4F7F;&#x7528; ngSwitchCase &#x6307;&#x4EE4;&#x63CF;&#x8FF0;&#x5DF2;&#x77E5;&#x7ED3;&#x679C;
    672. 

  672.   &#x4F7F;&#x7528; ngSwitchDefault &#x6307;&#x4EE4;&#x5904;&#x7406;&#x6240;&#x6709;&#x5176;&#x4ED6;&#x672A;&#x77E5;&#x60C5;&#x51B5;
    673. 

  673.     &#x91CD;&#x5199;&#x5B9E;&#x4F8B;
    674. 

  674.       <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;container&quot;</span> [<span class="hljs-attr">ngSwitch</span>]=<span class="hljs-string">&quot;myVar&quot;</span>&gt;</span>
    675. 

  675.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;&apos;A&apos;&quot;</span>&gt;</span>Var is A<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    676. 

  676.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;&apos;B&apos;&quot;</span>&gt;</span>Var is B<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    677. 

  677.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchDefault</span>&gt;</span>Var is something else<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    678. 

  678.       <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    679. 

  679.     &#x6DFB;&#x52A0;&#x6761;&#x4EF6;&#xFF1A; ngSwitchDefault &#x5143;&#x7D20;&#x662F;&#x53EF;&#x9009;&#x7684;&#x3002;&#x5982;&#x679C;&#x6211;&#x4EEC;&#x4E0D;&#x7528;&#x5B83;,&#x90A3;&#x4E48;&#x5F53; myVar &#x6CA1;&#x6709;&#x5339;&#x914D;&#x5230;&#x4EFB;&#x4F55;&#x671F;&#x671B;&#x7684;&#x503C;
    680. 

  680.           &#x65F6;&#x5C31;&#x4E0D;&#x4F1A;&#x6E32;&#x67D3;&#x4EFB;&#x4F55;&#x4E1C;&#x897F;&#x3002;
    681. 

  681.       <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;container&quot;</span> [<span class="hljs-attr">ngSwitch</span>]=<span class="hljs-string">&quot;myVar&quot;</span>&gt;</span>
    682. 

  682.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;&apos;A&apos;&quot;</span>&gt;</span>Var is A<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    683. 

  683.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;&apos;B&apos;&quot;</span>&gt;</span>Var is B<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    684. 

  684.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;&apos;C&apos;&quot;</span>&gt;</span>Var is C<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    685. 

  685.         <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngSwitchDefault</span>&gt;</span>Var is something else<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    686. 

  686.       <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    687. 

  687.   &#x4E3A;&#x4E0D;&#x540C;&#x7684;&#x5143;&#x7D20;&#x58F0;&#x660E;&#x540C;&#x6837;&#x7684; *ngSwitchCase &#x503C;
    688. 

  688.   &#x5728;&#x4E0B;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#x4E2D;,&#x5F53; choice &#x7684;&#x503C;&#x662F; 2 &#x7684;&#x65F6;&#x5019;,&#x7B2C;2&#x4E2A;&#x548C;&#x7B2C;5&#x4E2A; li &#x90FD;&#x4F1A;&#x88AB;&#x6E32;&#x67D3;&#x3002;
    689. 

  689.     <span class="hljs-tag">&lt;<span class="hljs-name">h4</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui horizontal divider header&quot;</span>&gt;</span>
    690. 

  690.       Current choice is {{ choice }}
    691. 

  691.     <span class="hljs-tag">&lt;/<span class="hljs-name">h4</span>&gt;</span>
    692. 

  692.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui raised segment&quot;</span>&gt;</span>
    693. 

  693.       <span class="hljs-tag">&lt;<span class="hljs-name">ul</span> [<span class="hljs-attr">ngSwitch</span>]=<span class="hljs-string">&quot;choice&quot;</span>&gt;</span>
    694. 

  694.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;1&quot;</span>&gt;</span>First choice<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    695. 

  695.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;2&quot;</span>&gt;</span>Second choice<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    696. 

  696.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;3&quot;</span>&gt;</span>Third choice<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    697. 

  697.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;4&quot;</span>&gt;</span>Fourth choice<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    698. 

  698.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchCase</span>=<span class="hljs-string">&quot;2&quot;</span>&gt;</span>Second choice, again<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    699. 

  699.         <span class="hljs-tag">&lt;<span class="hljs-name">li</span> *<span class="hljs-attr">ngSwitchDefault</span>&gt;</span>Default choice<span class="hljs-tag">&lt;/<span class="hljs-name">li</span>&gt;</span>
    700. 

  700.       <span class="hljs-tag">&lt;/<span class="hljs-name">ul</span>&gt;</span>
    701. 

  701.     <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    702. 

  702.     <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">style</span>=<span class="hljs-string">&quot;margin-top: 20px;&quot;</span>&gt;</span>
    703. 

  703.       <span class="hljs-tag">&lt;<span class="hljs-name">button</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui primary button&quot;</span> (<span class="hljs-attr">click</span>)=<span class="hljs-string">&quot;nextChoice()&quot;</span>&gt;</span>
    704. 

  704.       Next choice
    705. 

  705.       <span class="hljs-tag">&lt;/<span class="hljs-name">button</span>&gt;</span>
    706. 

  706.     <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    707. 

  707. </code></pre>
    708. 

  708. <h3 id="ngstyle">ngStyle</h3>
    709. 

  709. <blockquote>
    710. 

  710. <p>&#x7B2C;&#x4E00;&#x79CD;&#x7528;&#x6CD5;&#xFF1A;&#x4F7F;&#x7528; ngStyle &#x6307;&#x4EE4;,&#x53EF;&#x4EE5;&#x901A;&#x8FC7;Angular&#x8868;&#x8FBE;&#x5F0F;&#x7ED9;&#x7279;&#x5B9A;&#x7684;DOM&#x5143;&#x7D20;&#x8BBE;&#x5B9A;CSS&#x5C5E;&#x6027;&#x3002;
    711. 

  711.   &#x8BE5;&#x6307;&#x4EE4;&#x6700;&#x7B80;&#x5355;&#x7684;&#x7528;&#x6CD5;&#x5C31;&#x662F; [style.<cssproperty>]=&quot;value&quot; &#x7684;&#x5F62;&#x5F0F;,</cssproperty></p>
    712. 

  712. </blockquote>
    713. 

  713. <pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">style.background-color</span>]=<span class="hljs-string">&quot;&apos;yellow&apos;&quot;</span>&gt;</span>
    714. 

  714.   Uses fixed yellow background
    715. 

  715. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    716. 

  716. </code></pre>
    717. 

  717. <blockquote>
    718. 

  718. <p>&#x7B2C;&#x4E8C;&#x79CD;&#x7528;&#x6CD5;&#xFF1A;&#x8BBE;&#x7F6E;&#x56FA;&#x5B9A;&#x503C;&#x7684;&#x65B9;&#x5F0F;&#x5C31;&#x662F;&#x4F7F;&#x7528; ngStyle &#x5C5E;&#x6027;,&#x4F7F;&#x7528;&#x952E;&#x503C;&#x5BF9;&#x6765;&#x8BBE;&#x7F6E;&#x6BCF;&#x4E2A;&#x5C5E;&#x6027;</p>
    719. 

  719. </blockquote>
    720. 

  720. <pre><code class="lang-html"><span class="hljs-comment">&lt;!--&#x8FDE;&#x5B57;&#x7B26;&#x662F;&#x4E0D;&#x5141;&#x8BB8;&#x51FA;&#x73B0;&#x5728;&#x5BF9;&#x8C61;&#x7684;&#x952E;&#x503C;&#x5BF9;&#x4E2D;&#x7684;&#xFF0C;&#x9700;&#x8981;&#x4F7F;&#x7528;&#x5F15;&#x53F7;--&gt;</span>
    721. 

  721. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">ngStyle</span>]=<span class="hljs-string">&quot;{color: &apos;white&apos;, &apos;background-color&apos;: &apos;blue&apos;}&quot;</span>&gt;</span>
    722. 

  722. Uses fixed white text on blue background
    723. 

  723. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    724. 

  724. </code></pre>
    725. 

  725. <blockquote>
    726. 

  726. <p>&#x7B2C;&#x4E09;&#x79CD;&#x7528;&#x6CD5;&#xFF1A;&#x8FD9;&#x4E2A;&#x624D;&#x662F;ngStyle&#x7684;&#x51FA;&#x5F69;&#x7684;&#x5730;&#x65B9;</p>
    727. 

  727. </blockquote>
    728. 

  728. <pre><code class="lang-html"><span class="hljs-comment">&lt;!--&#x5728;component&#x4E2D;&#x58F0;&#x660E;&#x53D8;&#x91CF;&#xFF0C;&#x5B9A;&#x4E49;apply&#x51FD;&#x6570;&#xFF0C;&#x5C06;&#x8F93;&#x5165;&#x6846;&#x4E2D;&#x5BF9;&#x5E94;&#x7684;&#x503C;&#xFF0C;&#x901A;&#x8FC7;ngStyle&#x7ED1;&#x5B9A;&#x5230;&#x989C;&#x8272;&#x4E0E;&#x5B57;&#x4F53;&#x5927;&#x5C0F;&#x7684;&#x5C5E;&#x6027;&#x4E0A;&#x53BB;--&gt;</span>
    729. 

  729. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui input&quot;</span>&gt;</span>
    730. 

  730.   <span class="hljs-tag">&lt;<span class="hljs-name">input</span> <span class="hljs-attr">type</span>=<span class="hljs-string">&quot;text&quot;</span> <span class="hljs-attr">name</span>=<span class="hljs-string">&quot;color&quot;</span> <span class="hljs-attr">value</span>=<span class="hljs-string">&quot;{{color}}&quot;</span> #<span class="hljs-attr">colorinput</span>&gt;</span>
    731. 

  731. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    732. 

  732. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui input&quot;</span>&gt;</span>
    733. 

  733.   <span class="hljs-tag">&lt;<span class="hljs-name">input</span> <span class="hljs-attr">type</span>=<span class="hljs-string">&quot;text&quot;</span> <span class="hljs-attr">name</span>=<span class="hljs-string">&quot;fontSize&quot;</span> <span class="hljs-attr">value</span>=<span class="hljs-string">&quot;{{fontSize}}&quot;</span> #<span class="hljs-attr">fontinput</span>&gt;</span>
    734. 

  734. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    735. 

  735. <span class="hljs-tag">&lt;<span class="hljs-name">button</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui primary button&quot;</span> (<span class="hljs-attr">click</span>)=<span class="hljs-string">&quot;apply(colorinput.value, fontinput.value)&quot;</span>&gt;</span>
    736. 

  736.   Apply setting
    737. 

  737. <span class="hljs-tag">&lt;/<span class="hljs-name">button</span>&gt;</span>
    738. 

  738. <span class="hljs-comment">&lt;!--&#x6570;&#x636E;&#x7ED1;&#x5B9A;&#x7684;2&#x79CD;&#x65B9;&#x5F0F;--&gt;</span>
    739. 

  739. <span class="hljs-tag">&lt;<span class="hljs-name">span</span> [<span class="hljs-attr">ngStyle</span>]=<span class="hljs-string">&quot;{color: color,&apos;font-size&apos;: fontSize + &apos;em&apos;}&quot;</span>&gt;</span>
    740. 

  740. {{ color }} text
    741. 

  741. <span class="hljs-tag">&lt;/<span class="hljs-name">span</span>&gt;</span>
    742. 

  742. 

  743. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">style.background-color</span>]=<span class="hljs-string">&quot;color&quot;</span>
    744. 

  744.      [<span class="hljs-attr">style.font-size.em</span>]=<span class="hljs-string">&quot;fontSize&quot;</span>
    745. 

  745.      <span class="hljs-attr">style</span>=<span class="hljs-string">&quot;color: white;&quot;</span>&gt;</span>
    746. 

  746.   {{ color }} background
    747. 

  747. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    748. 

  748. </code></pre>
    749. 

  749. <pre><code class="lang-typescript"><span class="hljs-comment">// &#x5B9A;&#x4E49;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF0C;&#x5B9A;&#x4E49;&#x89E6;&#x53D1;&#x4E8B;&#x4EF6;</span>
    750. 

  750. <span class="hljs-keyword">export</span> <span class="hljs-keyword">class</span> InventoryAppComponent <span class="hljs-keyword">implements</span> OnInit {
    751. 

  751.   color:<span class="hljs-built_in">string</span>;
    752. 

  752.   fontSize:<span class="hljs-built_in">number</span>;
    753. 

  753. 

  754.   apply(color: <span class="hljs-built_in">string</span>, fontSize: <span class="hljs-built_in">number</span>) {
    755. 

  755.     <span class="hljs-keyword">this</span>.color = color;
    756. 

  756.     <span class="hljs-keyword">this</span>.fontSize = fontSize;
    757. 

  757.   }
    758. 

  758.   <span class="hljs-keyword">constructor</span>() {
    759. 

  759.   }
    760. 

  760.   ngOnInit() {
    761. 

  761.   }
    762. 

  762. }
    763. 

  763. </code></pre>
    764. 

  764. <h3 id="ngclass">ngClass</h3>
    765. 

  765. <blockquote>
    766. 

  766. <p>ngClass &#x6307;&#x4EE4;&#x5728;HTML&#x6A21;&#x677F;&#x4E2D;&#x7528; ngClass &#x5C5E;&#x6027;&#x6765;&#x8868;&#x793A;,&#x8BA9;&#x4F60;&#x80FD;&#x52A8;&#x6001;&#x8BBE;&#x7F6E;&#x548C;&#x6539;&#x53D8;&#x4E00;&#x4E2A;&#x7ED9;&#x5B9A;DOM&#x5143;&#x7D20;&#x7684;CSS&#x7C7B;&#x3002;
    767. 

  767. &#x4EE5;&#x4E0B;&#x662F;&#x6700;&#x7B80;&#x5355;&#x7684;&#x7528;&#x6CD5;&#x3002;</p>
    768. 

  768. </blockquote>
    769. 

  769. <pre><code class="lang-scss"><span class="hljs-selector-class">.bordered</span> {
    770. 

  770.   <span class="hljs-attribute">border</span>: <span class="hljs-number">1px</span> dashed black;
    771. 

  771.   <span class="hljs-attribute">background-color</span>: <span class="hljs-number">#eee</span>;
    772. 

  772. }
    773. 

  773. </code></pre>
    774. 

  774. <pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;{bordered: false}&quot;</span>&gt;</span>This is never bordered<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    775. 

  775. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;{bordered: true}&quot;</span>&gt;</span>This is always bordered<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    776. 

  776. </code></pre>
    777. 

  777. <blockquote>
    778. 

  778. <p>&#x52A8;&#x6001;&#x6DFB;&#x52A0;class</p>
    779. 

  779. </blockquote>
    780. 

  780. <pre><code class="lang-html"><span class="hljs-comment">&lt;!-- *&apos;`&apos;&#x7B26;&#x53F7;&#x662F;&#x4E3A;&#x4E86;&#x907F;&#x514D;gitbook&#x6E32;&#x67D3;&#x9875;&#x9762;&#x51FA;&#x73B0;&#x6545;&#x969C;* --&gt;</span>
    781. 

  781. <span class="hljs-comment">&lt;!-- &#x901A;&#x8FC7;ngClass&#x7ED1;&#x5B9A;&#x6570;&#x636E;&#x5230;&#x5404;&#x5143;&#x7D20;&#x7684;class&#x4E0A; --&gt;</span>
    782. 

  782. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;classesObj&quot;</span>&gt;</span>
    783. 

  783.   Using object var. Border `{{ classesObj.bordered ? &quot;ON&quot; : &quot;OFF&quot; }}`
    784. 

  784. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    785. 

  785. 

  786. <span class="hljs-tag">&lt;<span class="hljs-name">hr</span>&gt;</span>
    787. 

  787. <span class="hljs-comment">&lt;!-- &#x6839;&#x636E;&#x6761;&#x4EF6;&#x7ED1;&#x5B9A;&#x6570;&#x636E; --&gt;</span>
    788. 

  788. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;{bordered: isBordered}&quot;</span>&gt;</span>
    789. 

  789.   Using object literal. Border `{{ isBordered ? &quot;ON&quot; : &quot;OFF&quot; }}`
    790. 

  790. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    791. 

  791. <span class="hljs-tag">&lt;<span class="hljs-name">hr</span>&gt;</span>
    792. 

  792. <span class="hljs-comment">&lt;!-- &#x5B9A;&#x4E49;&#x6570;&#x7EC4;&#x7ED1;&#x5B9A;class --&gt;</span>
    793. 

  793. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;base&quot;</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;[&apos;blue&apos;, &apos;round&apos;]&quot;</span>&gt;</span>
    794. 

  794.   This will always have a blue background and
    795. 

  795.   round corners
    796. 

  796. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    797. 

  797. <span class="hljs-comment">&lt;!-- &#x52A8;&#x6001;&#x5B9A;&#x4E49;&#x6570;&#x7EC4;&#x7ED1;&#x5B9A;&#x7C7B; --&gt;</span>
    798. 

  798. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;base&quot;</span> [<span class="hljs-attr">ngClass</span>]=<span class="hljs-string">&quot;classList&quot;</span>&gt;</span>
    799. 

  799.   <span class="hljs-comment">&lt;!-- &#x5224;&#x65AD;&#x7C7B;&#x662F;&#x5426;&#x5B58;&#x5728; --&gt;</span>
    800. 

  800.   This is { { classList.indexOf(&apos;blue&apos;) &gt; -1 ? &quot;&quot; : &quot;NOT&quot;}} blue
    801. 

  801.   and { { classList.indexOf(&apos;round&apos;) &gt; 1 ? &quot;&quot; :&quot;NOT&quot; }} round
    802. 

  802. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    803. 

  803. </code></pre>
    804. 

  804. <pre><code class="lang-typescript"><span class="hljs-comment">// &#x5B9A;&#x4E49;&#x6570;&#x636E;&#xFF0C;&#x5E76;&#x8D4B;&#x503C;</span>
    805. 

  805. <span class="hljs-keyword">export</span> <span class="hljs-keyword">class</span> InventoryAppComponent <span class="hljs-keyword">implements</span> OnInit {
    806. 

  806.   isBordered: <span class="hljs-built_in">boolean</span>;
    807. 

  807.   classesObj: <span class="hljs-built_in">Object</span>;
    808. 

  808.   classList: <span class="hljs-built_in">string</span>[];
    809. 

  809.   <span class="hljs-keyword">constructor</span>() {
    810. 

  810.     <span class="hljs-keyword">this</span>.isBordered = <span class="hljs-literal">true</span>;
    811. 

  811.     <span class="hljs-keyword">this</span>.classesObj = {
    812. 

  812.       bordered : <span class="hljs-string">&quot;bordered&quot;</span>
    813. 

  813.     };
    814. 

  814.     <span class="hljs-keyword">this</span>.classList = [<span class="hljs-string">&apos;blue&apos;</span>, <span class="hljs-string">&apos;round&apos;</span>];
    815. 

  815.     <span class="hljs-built_in">console</span>.log(<span class="hljs-keyword">this</span>)
    816. 

  816.   }
    817. 

  817.   ngOnInit() {
    818. 

  818.   }
    819. 

  819. 

  820. }
    821. 

  821. </code></pre>
    822. 

  822. <h3 id="ngfor">ngFor</h3>
    823. 

  823. <blockquote>
    824. 

  824. <p>&#x8FD9;&#x4E2A;&#x6307;&#x4EE4;&#x7684;&#x4EFB;&#x52A1;&#x662F;&#x91CD;&#x590D;&#x4E00;&#x4E2A;&#x7ED9;&#x5B9A;&#x7684;DOM&#x5143;&#x7D20; (&#x6216;&#x4E00;&#x7EC4;DOM&#x5143;&#x7D20;),&#x6BCF;&#x6B21;&#x91CD;&#x590D;&#x90FD;&#x4F1A;&#x4ECE;&#x6570;&#x7EC4;&#x4E2D;&#x53D6;
    825. 

  825. &#x4E00;&#x4E2A;&#x4E0D;&#x540C;&#x7684;&#x503C;&#x3002;<br>
    826. 

  826. &#x5B83;&#x7684;&#x8BED;&#x6CD5;&#x662F; *ngFor=&quot;let item of items&quot; &#x3002;</p>
    827. 

  827. </blockquote>
    828. 

  828. <p><code>&#x7B80;&#x5316;&#x7248;</code></p>
    829. 

  829. <pre><code class="lang-typescript">cities: <span class="hljs-built_in">string</span>[];
    830. 

  830. <span class="hljs-keyword">constructor</span>() {
    831. 

  831.   <span class="hljs-keyword">this</span>.cities = [<span class="hljs-string">&apos;Miami&apos;</span>, <span class="hljs-string">&apos;Sao Paulo&apos;</span>, <span class="hljs-string">&apos;New York&apos;</span>];
    832. 

  832. }
    833. 

  833. </code></pre>
    834. 

  834. <pre><code class="lang-HTML"><span class="hljs-tag">&lt;<span class="hljs-name">h4</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui horizontal divider header&quot;</span>&gt;</span>
    835. 

  835.   Simple list of strings
    836. 

  836. <span class="hljs-tag">&lt;/<span class="hljs-name">h4</span>&gt;</span>
    837. 

  837. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui list&quot;</span> *<span class="hljs-attr">ngFor</span>=<span class="hljs-string">&quot;let c of cities&quot;</span>&gt;</span>
    838. 

  838.   <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;item&quot;</span>&gt;</span>{{ c }}<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    839. 

  839. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    840. 

  840. <span class="hljs-comment">&lt;!-- &#x8F93;&#x51FA; --&gt;</span>
    841. 

  841. Miami
    842. 

  842. Sao Paulo
    843. 

  843. New York
    844. 

  844. </code></pre>
    845. 

  845. <p><code>&#x8FDB;&#x9636;&#x7248;</code></p>
    846. 

  846. <pre><code class="lang-typescript">people: <span class="hljs-built_in">Object</span>[];
    847. 

  847. <span class="hljs-keyword">constructor</span>() {
    848. 

  848.   <span class="hljs-keyword">this</span>.people = [
    849. 

  849.     { name: <span class="hljs-string">&apos;Anderson&apos;</span>, age: <span class="hljs-number">35</span>, city: <span class="hljs-string">&apos;Sao Paulo&apos;</span> },
    850. 

  850.     { name: <span class="hljs-string">&apos;John&apos;</span>, age: <span class="hljs-number">12</span>, city: <span class="hljs-string">&apos;Miami&apos;</span> },
    851. 

  851.     { name: <span class="hljs-string">&apos;Peter&apos;</span>, age: <span class="hljs-number">22</span>, city: <span class="hljs-string">&apos;New York&apos;</span> }
    852. 

  852.   ];
    853. 

  853. }
    854. 

  854. </code></pre>
    855. 

  855. <pre><code class="lang-HTML"><span class="hljs-tag">&lt;<span class="hljs-name">h4</span>&gt;</span>table<span class="hljs-tag">&lt;/<span class="hljs-name">h4</span>&gt;</span>
    856. 

  856. <span class="hljs-tag">&lt;<span class="hljs-name">h4</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui horizontal divider header&quot;</span>&gt;</span>
    857. 

  857.   List of objects
    858. 

  858. <span class="hljs-tag">&lt;/<span class="hljs-name">h4</span>&gt;</span>
    859. 

  859. <span class="hljs-tag">&lt;<span class="hljs-name">table</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui celled table&quot;</span> <span class="hljs-attr">border</span>=<span class="hljs-string">&quot;0&quot;</span> <span class="hljs-attr">cellspacing</span>=<span class="hljs-string">&quot;0&quot;</span> <span class="hljs-attr">cellpadding</span>=<span class="hljs-string">&quot;0&quot;</span>&gt;</span>
    860. 

  860.   <span class="hljs-tag">&lt;<span class="hljs-name">thead</span>&gt;</span>
    861. 

  861.     <span class="hljs-tag">&lt;<span class="hljs-name">tr</span>&gt;</span>
    862. 

  862.       <span class="hljs-tag">&lt;<span class="hljs-name">th</span>&gt;</span>Name<span class="hljs-tag">&lt;/<span class="hljs-name">th</span>&gt;</span>
    863. 

  863.       <span class="hljs-tag">&lt;<span class="hljs-name">th</span>&gt;</span>Age<span class="hljs-tag">&lt;/<span class="hljs-name">th</span>&gt;</span>
    864. 

  864.       <span class="hljs-tag">&lt;<span class="hljs-name">th</span>&gt;</span>City<span class="hljs-tag">&lt;/<span class="hljs-name">th</span>&gt;</span>
    865. 

  865.     <span class="hljs-tag">&lt;/<span class="hljs-name">tr</span>&gt;</span>
    866. 

  866.   <span class="hljs-tag">&lt;/<span class="hljs-name">thead</span>&gt;</span>
    867. 

  867.   <span class="hljs-tag">&lt;<span class="hljs-name">tr</span> *<span class="hljs-attr">ngFor</span>=<span class="hljs-string">&quot;let p of people&quot;</span>&gt;</span>
    868. 

  868.     <span class="hljs-tag">&lt;<span class="hljs-name">td</span>&gt;</span>{{ p.name }}<span class="hljs-tag">&lt;/<span class="hljs-name">td</span>&gt;</span>
    869. 

  869.     <span class="hljs-tag">&lt;<span class="hljs-name">td</span>&gt;</span>{{ p.age }}<span class="hljs-tag">&lt;/<span class="hljs-name">td</span>&gt;</span>
    870. 

  870.     <span class="hljs-tag">&lt;<span class="hljs-name">td</span>&gt;</span>{{ p.city }}<span class="hljs-tag">&lt;/<span class="hljs-name">td</span>&gt;</span>
    871. 

  871.   <span class="hljs-tag">&lt;/<span class="hljs-name">tr</span>&gt;</span>
    872. 

  872. <span class="hljs-tag">&lt;/<span class="hljs-name">table</span>&gt;</span>
    873. 

  873. </code></pre>
    874. 

  874. <p><code>&#x8F93;&#x51FA;</code></p>
    875. 

  875. <table>
    876. 

  876. <thead>
    877. 

  877. <tr>
    878. 

  878. <th style="text-align:center">Name</th>
    879. 

  879. <th style="text-align:center">Age</th>
    880. 

  880. <th style="text-align:center">City</th>
    881. 

  881. </tr>
    882. 

  882. </thead>
    883. 

  883. <tbody>
    884. 

  884. <tr>
    885. 

  885. <td style="text-align:center">Anderson</td>
    886. 

  886. <td style="text-align:center">35</td>
    887. 

  887. <td style="text-align:center">Sao Paulo</td>
    888. 

  888. </tr>
    889. 

  889. <tr>
    890. 

  890. <td style="text-align:center">John</td>
    891. 

  891. <td style="text-align:center">12</td>
    892. 

  892. <td style="text-align:center">Miami</td>
    893. 

  893. </tr>
    894. 

  894. <tr>
    895. 

  895. <td style="text-align:center">Peter</td>
    896. 

  896. <td style="text-align:center">22</td>
    897. 

  897. <td style="text-align:center">New York</td>
    898. 

  898. </tr>
    899. 

  899. </tbody>
    900. 

  900. </table>
    901. 

  901. <p><code>&#x5D4C;&#x5957;&#x6570;&#x7EC4;</code></p>
    902. 

  902. <pre><code class="lang-HTML"><span class="hljs-tag">&lt;<span class="hljs-name">h4</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui horizontal divider header&quot;</span>&gt;</span>
    903. 

  903.   Nested data
    904. 

  904. <span class="hljs-tag">&lt;/<span class="hljs-name">h4</span>&gt;</span>
    905. 

  905. <span class="hljs-tag">&lt;<span class="hljs-name">div</span> *<span class="hljs-attr">ngFor</span>=<span class="hljs-string">&quot;let item of peopleByCity&quot;</span>&gt;</span>
    906. 

  906.   <span class="hljs-tag">&lt;<span class="hljs-name">h2</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui header&quot;</span>&gt;</span>{{ item.city }}<span class="hljs-tag">&lt;/<span class="hljs-name">h2</span>&gt;</span>
    907. 

  907.   <span class="hljs-tag">&lt;<span class="hljs-name">table</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui celled table&quot;</span>&gt;</span>
    908. 

  908.     <span class="hljs-tag">&lt;<span class="hljs-name">thead</span>&gt;</span>
    909. 

  909.       <span class="hljs-tag">&lt;<span class="hljs-name">tr</span>&gt;</span>
    910. 

  910.         <span class="hljs-tag">&lt;<span class="hljs-name">th</span>&gt;</span>Name<span class="hljs-tag">&lt;/<span class="hljs-name">th</span>&gt;</span>
    911. 

  911.         <span class="hljs-tag">&lt;<span class="hljs-name">th</span>&gt;</span>Age<span class="hljs-tag">&lt;/<span class="hljs-name">th</span>&gt;</span>
    912. 

  912.       <span class="hljs-tag">&lt;/<span class="hljs-name">tr</span>&gt;</span>
    913. 

  913.     <span class="hljs-tag">&lt;/<span class="hljs-name">thead</span>&gt;</span>
    914. 

  914.     <span class="hljs-tag">&lt;<span class="hljs-name">tr</span> *<span class="hljs-attr">ngFor</span>=<span class="hljs-string">&quot;let p of item.people&quot;</span>&gt;</span>
    915. 

  915.       <span class="hljs-tag">&lt;<span class="hljs-name">td</span>&gt;</span>{{ p.name }}<span class="hljs-tag">&lt;/<span class="hljs-name">td</span>&gt;</span>
    916. 

  916.       <span class="hljs-tag">&lt;<span class="hljs-name">td</span>&gt;</span>{{ p.age }}<span class="hljs-tag">&lt;/<span class="hljs-name">td</span>&gt;</span>
    917. 

  917.     <span class="hljs-tag">&lt;/<span class="hljs-name">tr</span>&gt;</span>
    918. 

  918.   <span class="hljs-tag">&lt;/<span class="hljs-name">table</span>&gt;</span>
    919. 

  919. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    920. 

  920. </code></pre>
    921. 

  921. <pre><code class="lang-typescript">peopleByCity: <span class="hljs-built_in">Object</span>;
    922. 

  922. <span class="hljs-keyword">constructor</span>() {
    923. 

  923.   <span class="hljs-keyword">this</span>.peopleByCity = [
    924. 

  924.     {
    925. 

  925.       city: <span class="hljs-string">&apos;Miami&apos;</span>,
    926. 

  926.       people: [
    927. 

  927.         { name: <span class="hljs-string">&apos;John&apos;</span>, age: <span class="hljs-number">12</span> },
    928. 

  928.         { name: <span class="hljs-string">&apos;Angel&apos;</span>, age: <span class="hljs-number">22</span> }
    929. 

  929.       ]
    930. 

  930.     },
    931. 

  931.     {
    932. 

  932.       city: <span class="hljs-string">&apos;Sao Paulo&apos;</span>,
    933. 

  933.       people: [
    934. 

  934.         { name: <span class="hljs-string">&apos;Anderson&apos;</span>, age: <span class="hljs-number">35</span> },
    935. 

  935.         { name: <span class="hljs-string">&apos;Felipe&apos;</span>, age: <span class="hljs-number">36</span> }
    936. 

  936.       ]
    937. 

  937.     }
    938. 

  938.   ];
    939. 

  939. }
    940. 

  940. </code></pre>
    941. 

  941. <p><code>&#x8F93;&#x51FA; Miami</code></p>
    942. 

  942. <table>
    943. 

  943. <thead>
    944. 

  944. <tr>
    945. 

  945. <th style="text-align:center">Name</th>
    946. 

  946. <th style="text-align:center">Age</th>
    947. 

  947. </tr>
    948. 

  948. </thead>
    949. 

  949. <tbody>
    950. 

  950. <tr>
    951. 

  951. <td style="text-align:center">John</td>
    952. 

  952. <td style="text-align:center">12</td>
    953. 

  953. </tr>
    954. 

  954. <tr>
    955. 

  955. <td style="text-align:center">Angel</td>
    956. 

  956. <td style="text-align:center">22</td>
    957. 

  957. </tr>
    958. 

  958. </tbody>
    959. 

  959. </table>
    960. 

  960. <p><code>&#x8F93;&#x51FA; Sao Paulo</code></p>
    961. 

  961. <table>
    962. 

  962. <thead>
    963. 

  963. <tr>
    964. 

  964. <th style="text-align:center">Name</th>
    965. 

  965. <th style="text-align:center">Age</th>
    966. 

  966. </tr>
    967. 

  967. </thead>
    968. 

  968. <tbody>
    969. 

  969. <tr>
    970. 

  970. <td style="text-align:center">Anderson</td>
    971. 

  971. <td style="text-align:center">35</td>
    972. 

  972. </tr>
    973. 

  973. <tr>
    974. 

  974. <td style="text-align:center">Felipe</td>
    975. 

  975. <td style="text-align:center">36</td>
    976. 

  976. </tr>
    977. 

  977. </tbody>
    978. 

  978. </table>
    979. 

  979. <p><code>&#x83B7;&#x53D6;&#x7D22;&#x5F15;</code></p>
    980. 

  980. <pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ui list&quot;</span> *<span class="hljs-attr">ngFor</span>=<span class="hljs-string">&quot;let c of cities; let num = index&quot;</span>&gt;</span>
    981. 

  981.   <span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;item&quot;</span>&gt;</span>{{ num+1 }} - {{ c }}<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    982. 

  982. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    983. 

  983. <span class="hljs-comment">&lt;!-- &#x8F93;&#x51FA; --&gt;</span>
    984. 

  984. 1-Miami
    985. 

  985. 2-Sao Paulo
    986. 

  986. 3-New York
    987. 

  987. </code></pre>
    988. 

  988. <h3 id="ngnonbindable">ngNonBindable</h3>
    989. 

  989. <blockquote>
    990. 

  990. <p>&#x5F53;&#x6211;&#x4EEC;&#x60F3;&#x544A;&#x8BC9;Angular&#x4E0D;&#x8981;&#x7F16;&#x8BD1;&#x6216;&#x8005;&#x7ED1;&#x5B9A;&#x9875;&#x9762;&#x4E2D;&#x7684;&#x67D0;&#x4E2A;&#x7279;&#x6B8A;&#x90E8;&#x5206;&#x65F6;,&#x8981;&#x4F7F;&#x7528; ngNodBindable&#x6307;&#x4EE4;&#x3002;</p>
    991. 

  991. </blockquote>
    992. 

  992. <pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;ngNonBindableDome&quot;</span>&gt;</span>
    993. 

  993.   <span class="hljs-tag">&lt;<span class="hljs-name">span</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;borderd&quot;</span>&gt;</span>{{content}}<span class="hljs-tag">&lt;/<span class="hljs-name">span</span>&gt;</span>
    994. 

  994.   <span class="hljs-tag">&lt;<span class="hljs-name">span</span> <span class="hljs-attr">class</span>=<span class="hljs-string">&quot;pre&quot;</span> <span class="hljs-attr">ngNonBindable</span>&gt;</span>
    995. 

  995.     &amp;larr;This is what {{ content }} rendered
    996. 

  996.   <span class="hljs-tag">&lt;/<span class="hljs-name">span</span>&gt;</span>
    997. 

  997. <span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
    998. 

  998. &#x8F93;&#x51FA;
    999. 

  999. &#x6587;&#x7AE0; &#x2190;This is what {{ content }} rendered
    1000. 

  1000. </code></pre>
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