os.chmod(path,mode) 这个方法应该很简单，只需要2个参数，一个是路径，一个是说明路径的模式，下面列出了这个用法中可以使用的一些常用的模式： stat.S_ISUID: Set user ID on execution. 不常用 stat.S_ISGID: Set group ID on execution. 不常用 stat.S_ENFMT: Record locking enforced. 不常用 stat.S_ISVTX: Save text image after execution. 在执行之后保存文字和图片 stat.S_IREAD: Read by owner. 对于拥有者读的权限 stat.S_IWRITE: Write by owner. 对于拥有者写的权限 stat.S_IEXEC: Execute by owner. 对于拥有者执行的权限 stat.S_IRWXU: Read, write, and execute by owner. 对于拥有者读写执行的权限 stat.S_IRUSR: Read by owner. 对于拥有者读的权限 stat.S_IWUSR: Write by owner. 对于拥有者写的权限 stat.S_IXUSR: Execute by owner. 对于拥有者执行的权限 stat.S_IRWXG: Read, write, and execute by group. 对于同组的人读写执行的权限 stat.S_IRGRP: Read by group. 对于同组读的权限 stat.S_IWGRP: Write by group. 对于同组写的权限 stat.S_IXGRP: Execute by group. 对于同组执行的权限 stat.S_IRWXO: Read, write, and execute by others. 对于其他组读写执行的权限 stat.S_IROTH: Read by others. 对于其他组读的权限 stat.S_IWOTH: Write by others. 对于其他组写的权限 stat.S_IXOTH: Execute by others. 对于其他组执行的权限