fix: 微信支付元转分改用 Decimal，修复 2.01 元被收 2 元

orders/views.py

@@ -38,6 +38,7 @@ from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentClo
 from tencentcloud.sts.v20180813 import sts_client, models
 
 from utils.weixin_broadcast import WeixinBroadcastSender
+from utils.money import yuan_to_fen
 from utils.chat_utils import _send_group_message, _subscribe_users_to_group, establish_order_chat
 from utils.fadan_utils import check_fadan_qiangdan_eligible
 
@@ -886,7 +887,7 @@ class CreateOrderView(APIView):
             nonce_str = ''.join(random.choices(string.ascii_letters + string.digits, k=32))
 
             # 金额（单位：分）
-            total_fee = int(float(jine) * 100)
+            total_fee = yuan_to_fen(jine)
 
             # 交易类型
             trade_type = 'JSAPI'
@@ -5662,7 +5663,7 @@ class AdTongYiTuiKuanPingTai(APIView):
 
             # 生成退款单号
             refund_id = f"TK{int(time.time())}{random.randint(1000, 9999)}"
-            total_fee_in_fen = int(float(jine) * 100)
+            total_fee_in_fen = yuan_to_fen(jine)
 
             # 构造请求参数
             refund_data = {