修改输入框提示文本

src/components/classRoomHelper/component/dialogArea.vue

@@ -80,6 +80,7 @@
               :disabled="loading || chatLoading"
               v-loading="loading || chatLoading"
               @keyup.enter.native="send()"
+							placeholder="请在此输入您想了解的内容"
               class="d_b_i_left"
               v-model="text"
             ></el-input>

src/components/classRoomHelper/component/searchArea.vue

@@ -413,7 +413,7 @@
             :disabled="loading || chatLoading"
             v-loading="loading || chatLoading"
             @keyup.enter.native="send()"
-						placeholder="输入'@'能进行对任务或学生分析"
+						placeholder="输入@可以分析任务和作业情况"
             class="s_b_i_left"
             v-model="text"
             ref="textRef"

src/components/classRoomHelper/component/taskArea.vue

@@ -122,6 +122,7 @@
             :disabled="loading || chatLoading"
             v-loading="loading || chatLoading"
             @keyup.enter.native="send()"
+						placeholder="请在此输入您想了解的内容"
             class="t_b_i_left"
             v-model="text"
           ></el-input>