save project

demo.py

+def new_input():       
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:    
+                unit=int(unit)
+            except:
+                print("请输入一个整数")
+            else:
+                total.append(unit)
+    return total
+
+def sum(li):
+    a=0
+    for i in li:
+        a+=i
+    return a
+list1=new_input()
+b=sum(list1)
+print(b)
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