save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
+i=3
 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
         if name != username:
         if name != username:
             print('账号有误')
             print('账号有误')
+            print("你还剩"+str(i)+"机会")
             continue
             continue
         if password !=  userpassword:
         if password !=  userpassword:
             print('密码有误')
             print('密码有误')
-    print("用户名和密码错误!请重新输入")
+            print("你还剩"+str(i)+"机会")
+    else:
+        print('你的账号已被锁定')
+        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