IDL新版本中添加了文本框鼠标选择的功能，demo即演示了该功能。-New version of IDL to add text box to choose the functions of the mouse, demo that demonstrate the feature.

IDL开发的小型的计算器，以及时钟和文件查找的列表框-IDL to develop a small calculator, and find the clock and file list box