save project

func.py

+def sos():        
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=int(unit)
+            except:
+                print("请输入一个数字。")
+            else:
+                total.append(unit)
+    return total
+def sum(money):
+    comm=0
+    for i in money:
+        comm=comm+i
+    return comm
+sopt=sos()
+pay=sum(sopt)
+print("一共消费"+str(pay)+"元,扫码还是现金？")