wr --exec "lessc duang.less duang.css" duang.less。

还是不可以

wr工具此时执行的是spawn,需要执行的是exec，正确的代码为：wr --exec "lessc duang.less duang.css" duang.less。详解如下：

exec:

the command will not be parsed, as will be run as given

should handle i/o redirection shell operators

stdout and stderr output will be buffered until the command is complete

spawn:

the command will be parsed into space separated tokens, probably misinterpreting any quotes you have in your command

will not handle i/o redirection shell operators

stdout and stderr output will not be buffered

详解来源：https://www.npmjs.com/package/wr

???怎么解决