save project

func.py

+
+def new_input():
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit1=int(unit)
+            except:
+                print("输入错误")
+
+            else:
+                total.append(unit1)            
+    return total
+
+        
+def sum(n):
+    count=0
+    for i in n:
+        count=count+i
+    return count
+price=new_input()
+pay=sum(price)
+print("您购买"+str(pay)+"元")
+