save project

diy2.py

 username = "python"
 userpassword = "123456"
 i=0
-while i<=3:
+while i<3:
     i=i+1
+    left=3-i
+    left=str(left)
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
@@ -10,8 +12,9 @@ while i<=3:
         break
     if name!= username:
         print("用户名不存在，请重新输入！")
+        print("还有"+left+"次机会)
         continue
     if password!=userpassword:
         print("密码输入有误，请重新输入！")
-    print("还有"i"次机会)
+        print("还有"+left+"次机会)
 print("欢迎来到贝尔编程!")
\ No newline at end of file