save project

diy.py

-lis1 = []
+   
+list = []       
 while True:
 while True:
-    a=input("请输入")
+    try:
+        a = int(input("请输入:"))
+    except:
+        print('请输入数字')
+    else ：
         list.append(a)
         list.append(a)
-    if a =='q':
-        break
+print(list))
\ No newline at end of file
-print(list)
\ No newline at end of file