新建下载账单、查询交易页面

src/user_pages/downloadBill/index.tsx

@@ -0,0 +1,10 @@
+import React, { useState, useEffect } from "react";
+import { View } from "@tarojs/components";
+
+const DownloadBill: React.FC = () => {
+  return (
+    <View>下载账单</View>
+  );
+};
+
+export default DownloadBill;