限制空数据保存

src/views/digital/signer.vue

@@ -1029,6 +1029,10 @@ import { log } from "@antv/g2plot/lib/utils";
             },
             saveBatch(){
                 console.log(this.tableData1,'this.tableData1');
+                if(this.tableData1.length==0){
+                    this.$message.error('请选择数据')
+                    return
+                }
                 this.saveBatchLoading = true;
                 submitEle(
                     this.tableData1