Windows xp Windows 2003：下载rktools工具箱.
或
http://download.microsoft.com/download/8/e/c/8ec3a7d8-05b4-440a-a71e-ca3ee25fe057/rktools.exe
命令示例：
linkd c:\source c:\destination
注意 c:\destination 要存在，命令执行成功后就将source目录连接到destination目录下了，而数据实际存储在destination中，但通过source和destination都能访问到destination目录下的内容。
Windows7+ Windows2018+：
直接使用mklink命令，具体使用方法如下：
Mklink
08/31/2016
2 minutes to read
Applies To: Windows Vista, Windows Server 2008, Windows Server 2012, Windows 8
Creates a symbolic link.
For examples of how to use this command, see Examples.
Syntax
Copy
mklink [[/d] | [/h] | [/j]]
Parameters
ParameterDescription
/dCreates a directory symbolic link. By default, mklink creates a file symbolic link.
/hCreates a hard link instead of a symbolic link.
/jCreates a Directory Junction.
Specifies the name of the symbolic link that is being created.
Specifies the path (relative or absolute) that the new symbolic link refers to.
/?Displays help at the command prompt.
Examples
To create a symbolic link named MyDocs from the root directory to the \Users\User1\Documents directory, type:
Copy
mklink /d \MyDocs \Users\User1\Documents
来源：https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/cc753194(v=ws.11)
