save project

diy.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
-    name = input("请输入用户名")
-    password = input("请输入密码")
-    if name == username and password == userpassword:
-        print("登陆成功")
-        break
-    elif name !=username:
-        print("用户名不存在,请重新输入")
+    if i>0:
+        name = input("请输入用户名")
+        password = input("请输入密码")
+        i -= 1
+        if name == username and password == userpassword:
+            print("登陆成功")
+            break
+        elif name !=username:
+        print("用户名错误,请重新输入")
+        continue
     else:
-        print("密码输入错误,请重新输入")
+        print("你的账户已被锁定,请一个小时后再来")
+        exit()
 print("欢迎来到编程")
\ No newline at end of file