VC++加锁文件检查工具。用于查看文件被谁加锁了，这个代码是很久以前的，但感觉还是很有用，于是就奉献出来了。-VC++ locking File Checker tool. For whom view the file locking, this code is a long time ago, but the feeling is still very useful, so out on the dedication.