save project

diy2.py

 i=3
+username = 'python'
+userpassword = 123456
 while True:
     if i>0: 
             name = input("请输入用户名:")
             password = input("请输入密码:")
+            i=i-1
             if name == username and password == userpassword:
                     print("登录成功!")
-                i=i-1
                     break
             if name != username:
                 print("用户名错误,请重新输入!")
+                print("还有"+str(i)+"次机会")
                 continue
             if password != userpassword:
                 print("密码输入有误,请重新输入!")
+                print("还有"+str(i)+"次机会")
                 continue
             print("欢迎来到贝尔编程!")
+    else:
+        print("本机已封锁")
         exit()
+             
\ No newline at end of file