auto save

func.py

+def x():
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=int(unit)
+            except:
+                print("请输入数字")
+            else:
+                total.append(unit)      
+    return total
+
+def sum(m):
+    num=0
+    for i in m:
+        num=num+i
+    return num
+a=x()
+b=sum(a)
+print("共消费"+str(b)+"元")