细节优化

src/user_pages/downloadBill/index.tsx

@@ -174,9 +174,10 @@ const DownloadBill: React.FC = () => {
     setShowFilterPopup(false);
   };
   const handleDownloadBill = async () => {
+    const { start, end } = dateRange;
+    if (!start || !end) return;
     try {
       const { transaction_sub_type } = load_transactions_params;
-      const { start, end } = dateRange;
       const date_range = [start, end];
       const res = await httpService.post("/wallet/download_bill", { transaction_sub_type, date_range });
       const { fileUrl, fileName } = res.data;
@@ -297,7 +298,7 @@ const DownloadBill: React.FC = () => {
         >
           下载记录
         </Text>
-        <Button className="download_button" onClick={handleDownloadBill}>
+        <Button className={`download_button ${!dateRange.start ? 'disabled' : ''}`} onClick={handleDownloadBill}>
           下载
         </Button>
       </View>