面授开课没有作业导入提示，不显示导入信息

src/components/drawers/ExportScore.vue

@@ -254,6 +254,16 @@ export default {
               console.log("查询导入状态", res);
               if (res.data.code === 200) {
                 if (res.data.data.status !== "START") {
+                  if(res.data.data.status === "SUCCESS"){
+                    state.addLoading = false;
+                    state.fileList = [];
+                    state.uploadpercent = -1;
+                    message.destroy(); 
+                    message.error(`当前开课暂无作业，无法导入成绩`);
+                    clearInterval(timer);
+                    clearTimeout(timeouts);
+                    return;
+                  }
                   i++;
                   if (i === 1) {
                     message.destroy();