字符集转换程序 -The source of the conversation program of char set

给应用程序加CRC效验的小工具的源码，加CRC效验，能防止软件被修改，该工具能实现自动添加功能。-CRC added to the application of well-tested source of small tools, plus CRC-tested, to prevent the software is modified, the tool can automatically add the feature.