封装ClistCtrl的打印类，只需要传入list的变量以及列表的title就可以实现打印功能，在VS2010上实现打印功能。（带列表框，和标题框的表格）-The package ClistCtrl the print category, only the incoming list of variables and the title of the list can be achieved to the print function, print function in VS2010. (With a sheet of list box, and the title box)