auto save

func.py

+total = []
+def new_input():
+    while True:
+            unit=input("请输入菜品价格：")
+            if unit== 'q':
+                break
+            else:
+                try:
+                    unit=int(unit)
+                except:
+                    print('输入错误,请输入整数')
+                else:
+                    total.append(unit)
+                print('-'*30)                        
+    return total
+
+def sum(b):
+    a=0
+    for i in b:
+        a=a+i
+    return a
+d=new_input()
+c=sum(d)
+print(c)
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