给使用者一个重新排列控件的方法,添加控件而不用为新添加的控件写移动代码,我都代办了.控件可以随意拖动,我希望可以成为以后程序都具备的功能-Give the user a way to rearrange the controls, add controls without having to write for the new controls to add mobile code, I have had agency. Controls are free to drag, I hope I c