save project

diy2.py

+i=3
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
+    if  i>0:
+        if  i==3 and i>3:
+                print("您的次数已用尽")
+                break    
         name = input("请输入用户名:")
         name = input("请输入用户名:")
+        i-=1
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功")   
             print("登录成功")   
             print("欢迎来到贝尔编程!")     
             print("欢迎来到贝尔编程!")     
@@ -10,3 +16,4 @@ while True:
         else:
         else:
             password=input("请输入密码:")
             password=input("请输入密码:")
             print("密码错误")
             print("密码错误")
+exit()          
\ No newline at end of file