save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-while True:
+i=0
+while i<5:
     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:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+        print("欢迎来到贝尔编程!")
+        break
\ No newline at end of file
+    else: 
+        print("用户名和密码错误!请重新输入")
+        i=i+1
\ No newline at end of file