窗体透明，透明度可以调节。Delphi7 编译通过。-The form transparent, can adjust the transparency.Delphi7 compiler through.

delphi7实现登录界面的控制,及获取本机的信息的功能及FTP功能的部分实现(Delphi7 implementation of the login interface control, and get the machine information function and part of the implementation of the FTP function)