利用TCL/TK语言编写的Widget说明文件-This application provides a front end for several short scr ipts that demonstrate what you can do with Tk widgets.　Each of the numbered lines below describes a demonstration　you can click on it to invoke the demonstration.　Once the demonstration window appears, you can click the See Code button to see the Tcl/Tk code that created the demonstration.　If you wish, you can edit the code and click the Rerun Demo button in the code window to reinvoke the demonstration with the modified code.