修改接口参数判断

src/views/data/UploadLink.vue

@@ -418,7 +418,7 @@ export default {
         })
         .catch((err) => {
           console.log(err);
-        }); 
+        });
     }, */
     //导出excel
     onOutputExcel: function () {
@@ -559,7 +559,7 @@ export default {
         .then((res) => {
           if (res.data.code === 200) {
             console.log(res);
-            this.publishCount = res.data.data[0].publishCount;
+            this.publishCount = res.data.data.length > 0 ?  res.data.data[0].publishCount : 0;
             let len = this.publishCount;
             let l = this.tableData.length;
             console.log("获取可发布数量", len, l);