save project

diy1.py

+def a_1():
+    total = []
+    while True:
+        unit = input("请输入:")
+        if unit == "q":
+            break
+        else:
+            try:
+                unit = int(unit)
+            except:
+                print("请重新输入一个数字")
+            else:
+                total.append(unit)
+            finally:
+                print("-"*30)
+    return total 
+
+def sum(money):
+    count = 0
+    for i in money:
+        count = count +i
+    return count
+
+price = a_1()
+pay = sum(price)
+print("您一共消费了"+str(pay)+"元！扫码还是现金")
+
+
+
+
+
+
+
+