diff --git a/src/utils/index.js b/src/utils/index.js
index 89ced25..0e160f6 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -755,7 +755,7 @@ export function tablePrint(id, title) {
     body{margin:5mm;font-size:8px;}}
     body{-webkit-print-color-adjust: exact;}
     .tit{text-align:center;font-size:20px;color:#333;line-height:24px;font-weight:700;padding:10px 0;margin:0;}
-    .table-box,.el-table,.el-table__body-wrapper,.el-table--border{max-height:99999999px!important;height:auto;width:auto!important}
+    .table-box,.el-table,.el-table__body-wrapper,.el-table--border{max-height:99999999px!important;height:auto;width:auto!important;max-width:1400px;margin: 0 auto;}
     .el-table{width:100%}
     .el-table,.el-table__body-wrapper{max-height:auto}
     .el-table .el-table__cell{padding:12px 0}
@@ -782,6 +782,7 @@ export function tablePrint(id, title) {
     .hui-s.s3{width: 120px;}
     .info { display: flex;flex-wrap: wrap;border-left: 1px solid #ccc;border-top: 1px solid #ccc;margin-bottom: 12px;}
     .info-item {width: 25%;height: 50px;box-sizing: border-box;flex-shrink: 0;background: #f8f8f8;border-right: 1px solid #ccc;border-bottom: 1px solid #ccc;line-height: 50px;text-align: center;}
+    .el-table__header,.el-table__body{width:100%!important;}
     </style>`;
   let aDom = divs.cloneNode(true);
   let aTbody = aDom
diff --git a/src/views/standard/setUp/student.vue b/src/views/standard/setUp/student.vue
index 8292ff1..e781227 100644
--- a/src/views/standard/setUp/student.vue
+++ b/src/views/standard/setUp/student.vue
@@ -399,6 +399,10 @@ export default {
   },
   methods: {
     openAddDia() {
+      if(!formStu.className){
+        this.$message.warning('暂无班级信息，请导入班级！')
+        return 
+      }
       this.formStu.studentName = "";
       this.formStu.studentCode = "";
       this.formStu.shortNumber = "";