diff --git a/Week_02/G20200389010177/G20200389010177-Week-02.py b/Week_02/G20200389010177/G20200389010177-Week-02.py
new file mode 100644
index 000000000..d3a7cdbe3
--- /dev/null
+++ b/Week_02/G20200389010177/G20200389010177-Week-02.py
@@ -0,0 +1,61 @@
+# 顾客结束购物
+class Shopping(object):
+    def __init__(self, items, total):
+        self.items = items
+        self.total = total
+        print(f'本次您一共购买了{self.items}件商品，原价合计{self.total}元')
+
+
+# 普通会员结账
+class Normal(Shopping):
+
+    def __init__(self, items, total):
+        super().__init__(items, total)
+
+    def discount(self):
+        print('您是本店普通会员，购物满200可享受9折优惠')
+        if self.total < 200:
+            _subtotal = self.total
+            print('您本次购物金额未满200元')
+        else:
+            _subtotal = self.total * 0.90
+        return _subtotal
+
+
+# VIP会员结账
+class Vip(Shopping):
+
+    def __init__(self, items, total):
+        super().__init__(items, total)
+
+    def discount(self):
+        print('您是本店VIP会员，购物满10件享受85折优惠，购物满200元享受8折优惠')
+        if self.total < 200 and self.items < 10:
+            _subtotal = self.total
+            print('本次购物您未满足优惠条件')
+        elif self.total < 200 and self.items >= 10:
+            _subtotal = self.total * 0.85
+            print('本次购物满10件，总金额不满200元，按照85折优惠')
+        elif self.total >= 200:
+            _subtotal = self.total * 0.8
+            print('本次总金额满200元，按照8折优惠')
+        return _subtotal
+
+
+# 收银
+class Cash_register():
+
+    @staticmethod
+    def checkout(membership, items, total):
+        print('欢迎光临996便利店！')
+        if membership == 'normal':
+            subtotal = Normal(items, total).discount()
+            print('请支付{:.2f}元'.format(subtotal))
+        elif membership == 'vip':
+            subtotal = Vip(items, total).discount()
+            print('请支付{:.2f}元'.format(subtotal))
+        print('祝您生活愉快')
+
+
+if __name__ == '__main__':
+    Cash_register.checkout('vip', 2, 31)
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