往来单位选入产品判断产品未空

src/views/basic/product/basicCompanyProductsImport.vue

@@ -435,6 +435,10 @@ export default {
 
         selectExport() {
             var selectData = this.multipleSelection;
+            if(selectData.length==0){
+              this.$message.error("请先选择产品！");
+              return
+            }
             selectData.forEach((obj) => {
                 this.filterQuery.rlIds.push(obj.id);
                  this.filterQuery.nameCode=obj.nameCode;