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packageA/tags/index.js

@@ -72,6 +72,7 @@ Page({
   },
   /* 提交 */
   submit() {
+    if (this.data.actives.length == 0) return;
     _Http.basic({
       "id": 20220929090901,
       "content": {

packageA/tags/index.wxml

@@ -12,7 +12,7 @@
   <view class="count">
     已选：{{actives.length}}
   </view>
-  <van-button custom-class='but' bindtap="submit">确定</van-button>
+  <van-button custom-class='but' bindtap="submit" disabled='{{actives.length==0}}'>确定</van-button>
 </view>
 
 <wxs module="active">