save project

diy3.py

 username="python"
 username="python"
 userpassword="123"
 userpassword="123"
-name=input("请输入用户名称")
-password=input("请输入密码")
-if username==name and userpassword==password:
-    print("登录成功")
-else:
-    print("登录失败,请重新登录!")    
+while True:
+    name=input("请输入用户名称")
+    password=input("请输入密码")
+    if username==name and userpassword==password:
+        print("登录成功")
+        break 
\ No newline at end of file
+    else:
+        print("登录失败,请重新登录!")
+print("欢迎来到贝尔编程")