修改了

src/views/rai_manage/components/apply/templateMessage.vue

@@ -15,7 +15,7 @@
             </el-select>
           </el-form-item>
           <el-form-item prop="activityName">
-            <el-input type="textarea" :rows="2" placeholder="请输入活动名称（20字内）" v-model="messageForm.activityName"> </el-input>
+            <el-input type="textarea" :rows="2" :placeholder="`请输入${this.typeMessage == '确定行程' ? '调研主题' : '活动名称'}（20字内）`" v-model="messageForm.activityName"> </el-input>
           </el-form-item>
           <el-form-item prop="content">
             <el-input type="content" :rows="2" placeholder="请输入变更内容（20字内）" v-model="messageForm.content"> </el-input>
@@ -83,7 +83,8 @@ export default {
   watch: {
     messageDialog: {
       handler(newValue) {
-        if (newValue) this.messageForm.activityName = this.selectionArr[0].ActivityName;
+        console.log(this.selectionArr);
+        if (newValue) this.messageForm.activityName = this.selectionArr[0].ActivityName || this.selectionArr[0].ResearchTheme;
         this.activitySendGroupList();
       },
     },