save project

func.py

+def new_input():
+    total = []       
+    while True:
+        unit = input('请输入价格：')
+        if unit == 'q':
+            print('退出')
+            break            
+        else:
+            try:
+                unit = int(unit)
+            except:
+                print('输入错误，请重新输入一个数字。')
+            else:        
+                total.append(unit)        
+    return total                 
+
+
+def sum(money):
+    count = 0
+    for i in money:
+        count = count+i
+    return count
+
+pritr = new_input()
+pay = sum(pritr)
+print('您一共消费了'+str(pay)+'元,'+'扫码还是现金呢？')        
\ No newline at end of file