选择宝贝为20个时无法取消

client/components/dialog/items-dialog/items-dialog.js

@@ -114,21 +114,19 @@ Component({
     },
     changeCheckStatus(e) {
       const { chooseId } = this.data;
-
-      if (chooseId.length >= 20) {
-        my.showToast({
-          type: "fail",
-          content: "最多选择20个宝贝",
-        });
-        return;
-      }
       const { item } = e.target.dataset;
-
       if (chooseId.includes(item.itemId)) {
         this.setData({
           chooseId: chooseId.filter(v => v !== item.itemId),
         });
       } else {
+        if (chooseId.length >= 20) {
+          my.showToast({
+            type: "fail",
+            content: "最多选择20个宝贝",
+          });
+          return;
+        }
         this.setData({
           chooseId: [...chooseId, item.itemId],
         });