只有sentType=2时，才能显示批量修改备注

src/views/course/courseWatchLog/index.vue

@@ -329,7 +329,7 @@
           >批量移除标签</el-button>
         </el-col>
       </el-col>
-      <el-col :span="1.5">
+      <el-col :span="1.5" v-if="queryParams.sendType == 2">
         <el-button
           type="success"
           plain
@@ -340,7 +340,7 @@
         >批量修改备注
         </el-button>
       </el-col>
-      <el-col :span="1.5">
+      <el-col :span="1.5" v-if="queryParams.sendType == 2">
         <el-button
           type="success"
           plain

src/views/course/courseWatchLog/watchLog.vue

@@ -305,7 +305,7 @@
           >批量移除标签</el-button>
         </el-col>
       </el-col>
-      <el-col :span="1.5" >
+      <el-col :span="1.5"  v-if="queryParams.sendType == 2">
         <el-button
           type="success"
           plain
@@ -316,7 +316,7 @@
         >批量修改备注
         </el-button>
       </el-col>
-      <el-col :span="1.5" >
+      <el-col :span="1.5"  v-if="queryParams.sendType == 2">
         <el-button
           type="success"
           plain