VC获取并设置当前文件夹为程序运行目录，先枚举出自己所在的路径，然后将这个路径设置为工作目录，再此不再多说了，功能比较单一，有空的时候参阅一下，尤其对初级用户有帮助。-VC to get and set the current folder for the program to run directory, where the first enumeration own path, and then the path to working directory, and then say no more of this, relatively simple functions, see what free time, especially assistance to primary users.