save project

diy2.py

-username = "python"
-userpassword = "123456"
+i=3
+username = "我爱python"
+userpassword = "54188"
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
         password = input("请输入密码:")
         password = input("请输入密码:")
+        i-=1
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
-    elif name != username:
+        if name != username:
             print("用户名不存在")
             print("用户名不存在")
-    else: 
+            continue
+        if name != userpassword:
             print("密码错误")
             print("密码错误")
+            continue    
+    else: 
+            print("账号锁定")
+            exit()  
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file