diff --git a/customer/user/wallet.go b/customer/user/wallet.go
index 41682d5..257428b 100644
--- a/customer/user/wallet.go
+++ b/customer/user/wallet.go
@@ -11,9 +11,10 @@ type wallet struct {
 type walletType uint // 费用类型
 
 const (
-	WalletTypeIncome walletType = 1 // 收入
-	WalletTypeExpend walletType = 2 // 支出
-	WalletTypeBack   walletType = 3 // 退款
+	WalletTypeIncome walletType = 1 // 收入 +
+	WalletTypeExpend walletType = 2 // 支出 -
+	WalletTypeBack   walletType = 3 // 退款 +
+	WalletTypeCash   walletType = 4 // 提现 -
 
 	WalletStatusHandle  = 1 // 处理中
 	WalletStatusSuccess = 2 // 成功