今日心得：用rundll32.exe运行VBscript代码的连接符是小括号，之前一直苦恼、百思不得其解的事情就这样被攻克了。
rundll32.exe vbscript:"\..\mshtml,RunHTMLApplication "(CreateObject("Shell.Application").ShellExecute("cmd.exe","/k","","runas",1)(self.close))