初始化项目：添加后端代码、ThinkPHP框架、前端资源

application/common/constant/order/Status.php

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+<?php
+
+namespace app\common\constant\order;
+
+/**
+ * 订单状态
+ */
+class Status
+{
+    //订单状态
+    const STATUS_CLOSE = 'close';//已关闭
+    const STATUS_UNPAID = 'unpaid';//待支付
+    const STATUS_PAID = 'paid';//已经支付
+    const STATUS_UNRECEIVE = 'unreceive';//待收货;已发货
+    const STATUS_UNSEND = 'unsend';//待发货
+    const STATUS_SUREUNRECEIVE = 'surereceive';//确认收货
+    const STATUS_SUCCESS = 'success';//交易成功
+    const STATUS_CANCEL = 'cancel';//已取消
+    const STATUS_SERVICE = 'service';//售后处理
+    const STATUS_REFUND = 'refund';//已退款
+
+
+    // 退款状态
+    const REFUND_STATUS_REFUSE = -1;       // 拒绝退款
+    const REFUND_STATUS_NOREFUND = 0;       // 退款状态 未申请
+    const REFUND_STATUS_ING = 1;       // 申请中
+    const REFUND_STATUS_OK = 2;       // 已同意
+    const REFUND_STATUS_FINISH = 3;       // 退款完成
+
+    // 售后状态
+    const AFTERSALE_STATUS_NOAFTER = 0;       // 未申请
+    const AFTERSALE_STATUS_AFTERING = 1;       // 申请退款
+    const AFTERSALE_STATUS_OK = 2;        // 售后完成
+
+    //退款申请状态
+    const REFUND_APPLY_STATUS_WAITING = 0;//未处理
+    const REFUND_APPLY_STATUS_OK = 0;//已处理
+
+    public static function getSuccessOrderStatus(){
+        return [self::STATUS_PAID,self::STATUS_UNRECEIVE,self::STATUS_UNSEND,self::STATUS_SUREUNRECEIVE,self::STATUS_SUCCESS];
+    }
+
+}