增加线下支付订单状态码

app/Service/OrderStatus.php

@@ -14,6 +14,8 @@ class OrderStatus
 	const PAY_EARNEST 	= 1; //已付定金
 	const PAID 			= 2; //已付全款
 	const PAY_RETAINAGE = 3; //已付尾款
+	const OFFLINE_UNPAID= 4; //线下支付未付款
+	//const OFFLINE_PAID 	= 5; //线下支付已收款
 	const REFUNDING 	= 6; //退款中
 	const REFUNDED 		= 7; //退款完成
 	const SUCCESS 		= 16; //已完成