save project

diy1.py

 username = "python"    
 username = "python"    
 userpassword = "123456"  
 userpassword = "123456"  
+while True:  
     name=input("请输入您的名字:")
     name=input("请输入您的名字:")
     password=input("请输入密码:")
     password=input("请输入密码:")
     if username==name and usepassword==password:
     if username==name and usepassword==password:
-print("登录成功")
+        print("登录成功")
\ No newline at end of file
+        break
+    print("请重新输入")
+print("欢迎来到贝尔星球")
\ No newline at end of file