优化任务详情页提示

src/views/projectManage/taskList/taskViewDetail.vue

@@ -8,7 +8,7 @@
               <img v-if="form_query.stage === 1" :src="normalImg">
               <img v-if="form_query.stage === 2" :src="stageImg">
               <img v-if="form_query.stage === 3" :src="warningImg">
-              <el-tooltip class="item" effect="dark" :content="form_query.stageString + '：' + form_query.lateMsg" placement="bottom">
+              <el-tooltip class="item" effect="dark" :disabled="form_query.lateMsg===null" :content="form_query.stageString + '：' + form_query.lateMsg" placement="bottom">
                 <div class="task-stage-title">
                   {{ form_query.stageString }}
                 </div>