调整专项答题获取数据的参数名大小写

src/views/home/answer/page-answer-special.vue

@@ -64,7 +64,7 @@ export default {
         page: this.specialPage,
         size: this.specialSize,
         engineertypeid: this.chooseEngneeringWork.id,
-        userName: this.userInfo.userName
+        username: this.userInfo.userName
       };
       this.$_http
         .get(this.$_API.GET_JTXT_SPECIAL_QUESTIONS, { params })