修改字段名称，增加序号

src/views/orderEntry/orderImport/columns.js

@@ -1,9 +1,15 @@
 const columns = [
 
+  {
+    prop: "",
+    type:"index",
+    width: "50px",
+  },
+
   {
     prop: "platform_code",
     label: "平台订单号",
-    fixed: "left",
+    // fixed: "left",
     width: "152px",
   },
   {
@@ -43,7 +49,7 @@ const columns = [
   // },
   {
     prop: "discount_price",
-    label: "优惠金额",
+    label: "订单总金额",
     width: "140px",
   },
   // {