修改

src/api/common/common.js

@@ -212,7 +212,7 @@ export function downloadLocalFile(fileName, filePath) {
   const a = document.createElement('a');
   a.setAttribute('download', '');
   var url = process.env.API;
-  a.setAttribute('href', url + '/Upload/DownloadFileForPdf?fileName=' + fileName + '&fPath=' + filePath);
+  a.setAttribute('href', url + '/Upload/DownloadFileForPdf?fileName=' + fileName + '.pdf&fPath=' + filePath);
   a.click();
 }
 

src/pages/sale/contractManage.vue

@@ -332,7 +332,7 @@
         }
         GetDownLoadEducationContract(msg).then(res => {
           if (res.Code == 1) {
-            let sign=item.ContractNo;
+            let sign=item.StudentName+'-'+item.ContractNo;
             downloadLocalFile(sign,res.Data);
           }
         })