update

src/modules/examwork/view/weixinAnswerSetting.vue

@@ -326,9 +326,12 @@ export default {
         let url =
           EXAM_WORK_API +
           "/exam/course/export/weixinAnswerEnabledSetting?examId=" +
-          this.searchForm.examId +
-          "&weixinAnswerEnabled=" +
-          this.searchForm.weixinAnswerEnabled;
+          this.searchForm.examId;
+
+        if (this.searchForm.weixinAnswerEnabled) {
+          url += "&weixinAnswerEnabled=" + this.searchForm.weixinAnswerEnabled;
+        }
+
         window.open(url);
       });
     },