save project

123.py

+i = 3
 username = "ysz20111212"
 userpassword = "121200"
 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 
-    if name != username:
-        print("用户名不存在,请重新输入")
-        continue
-    if password != userpassword:
-        print("密码输入错误！请重新输入")
-print("欢迎来到贝尔编程！")
+    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 
+        if name != username:
+            print("用户名不存在,请重新输入")
+            continue
+        if password != userpassword:
+            print("密码输入错误！请重新输入")
+    else:
+        print("你的账号已被锁定,请一个小时后再来")
+        exit()
+print("欢迎来到贝尔编程")