在vbs下执行cmd命令，并参数化cmd中的一些变量

[powercong]

类似以下代码，如何用vbs中的变量来代替C:\，以此来进入变量指示的目录

请大家说的详细些，谢谢！

set winshell = wscript.createobject ("wscript.shell")
winshell.run "cmd /K cd C:\"
set winshell = nothing

[hookee]

dir = "C:\"
set winshell = wscript.createobject ("wscript.shell")
winshell.run "cmd /K cd " & dir
set winshell = nothing

[Jey]

???