auto save

1.py

+import turtle
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func.py

+def a():
+    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(zhi):
+    count=0
+    for i in zhi:
+        count=count+i
+    return count
+a_1=a()
+price=sum(a_1)
+print("你需要支付：",price,"元")
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