fix:处理不存在报名记录的情况

src/views/new-employee/WelcomePage.vue

@@ -118,13 +118,18 @@ export default {
         // 从后端获取用户信息和报名状态
         const res = await getWelcomeData();
         const szxygProjectInfo = await getSzxygProjectInfo();
+        this.allowSelfRegistration =
+          szxygProjectInfo.data.allowSelfRegistration;
         if (res.status === 200 && res.data) {
+          if (typeof res.data === "string") {
+            this.approvalResults = null;
+            return;
+          }
           this.userName = res.data.studentName;
           // 1报名失败、2审核中、3审核通过、4审核失败
           if (res.data.approvalResults) {
             this.approvalResults = res.data.approvalResults;
-            this.allowSelfRegistration =
-              szxygProjectInfo.data.allowSelfRegistration;
+
             if (res.data.approvalResults != 1) {
               this.$router.push("/new-employee/study");
             }