磁盘自由空间粉碎机DiskRandomFill： 通过在指定目录下打开文件追加随机数据直到硬盘空间写满为止，已达到覆盖已删除文件内容的目的。- DiskRandomFill.c To fill the disk with random data until the disk is full or manually interupted by the user. Note that the program will open a file "tmpName=Whatiti