Xcopy 选项：

/a 包含属性

/b 备份模式（只拷贝设置为归档属性的文件）

/c 把目标文件的创建日期设置为当前文件日期

/e 包含创建空目录

/f 刷新已存在文件（只拷贝已存在的文件）

/h 拷贝隐含文件

/p 对每个文件/目录都进行确认

/q 简洁模式

/r 多盘拷贝（如果目标盘为A-E且容量小于2M时会被提问）

/s 包含子目录

/u 更新模式（只拷贝新文件）

/v 校检目标文件，速度缓慢

/w 窗口模式

/x 文件名 不包括该文件名的文件（可使用通配符）

/y 目录名 不包含该目录名的文件（同/x，隐含/s参数）-Xcopy options :/attribute contains a/b backup mode (only copy archive attribute set to the document)/c target date of the founding documents set to the current date of the document/e consists of creating empty directory/f update existing documents (only copy of the document has been in existence)/h copy hidden files/p for each file/directory have confirmation/q concise model/r multi-disk copies (if the target set for A-E a capacity of less than 2M will be questions)/s contains subdirectories/u update mode (only copy new files)/v calibration target file, slow speed/w window mode/x documents were not included in the file name in the paper (can use wildcards)/y name of the directory does not contain the name of the directory the file (with the/x, implied/s