7z压缩与解压命令

在写很多工具的时候，可能会用到7z命令来进行压缩与解压操作。这里记录二个比较常用的操作：压缩、解压。

在dos窗口下输入7z命令，会显示7z的使用参数详情：

7-Zip 9.10 beta Copyright (c) 1999-2009 Igor Pavlov 2009-12-22

Usage: 7z <command> [<switches>…] <archive_name> [<file_names>…]
[<@listfiles…>]

<Commands>
a: Add files to archive
b: Benchmark
d: Delete files from archive
e: Extract files from archive (without using directory names)
l: List contents of archive
t: Test integrity of archive
u: Update files to archive
x: eXtract files with full paths
<Switches>
-ai[r[-|0]]{@listfile|!wildcard}: Include archives
-ax[r[-|0]]{@listfile|!wildcard}: eXclude archives
-bd: Disable percentage indicator
-i[r[-|0]]{@listfile|!wildcard}: Include filenames
-m{Parameters}: set compression Method
-o{Directory}: set Output directory
-p{Password}: set Password
-r[-|0]: Recurse subdirectories
-scs{UTF-8 | WIN | DOS}: set charset for list files
-sfx[{name}]: Create SFX archive
-si[{name}]: read data from stdin
-slt: show technical information for l (List) command
-so: write data to stdout
-ssc[-]: set sensitive case mode
-ssw: compress shared files
-t{Type}: Set type of archive
-u[-][p#][q#][r#][x#][y#][z#][!newArchiveName]: Update options
-v{Size}[b|k|m|g]: Create volumes
-w[{path}]: assign Work directory. Empty path means a temporary directory
-x[r[-|0]]]{@listfile|!wildcard}: eXclude filenames
-y: assume Yes on all queries

必选参数：最常用的命令有a（压缩）、x（解压），其它的命令诸如删除，解压出来不保留目录结构这种，一般情况下都用不到。

可选参数：最常用的就是-t{Type}

Type默认值为7z，还有其它的如：

Type	Format	Example filename
-t7z	7Z	archive.7z(默认)
-tgzip	GZIP	archive.gzip，archive.gz
-tzip	ZIP	archive.zip(兼容)
-tbzip2	BZIP2	archive.bzip2
-ttar	TAR	tarball.tar(Unix/Linux)
-tiso	ISO	image.iso(可能不支持)
-tudf	UDF	disk.udf