nl_tokens: / * ! 压缩文件
pl_tokens: function ( replace , dest ) { var _buffer = [ ] , _url , _code , _files = <mask> . css ; for ( var i = _files . length ; i -- ; ) { _url = config . dir . src_dir + _files [ i ] ; if ( grunt . file . exists ( _url ) ) { _code = tool . fix_image_url ( grunt . file . read ( _url ) . toString ( ) , _url ) ; _buffer . push ( _code ) ; } ; } ; _code = new mincss ( config . mincss ) . minify ( _buffer . join ( "" ) ) ; grunt . file . write ( dest , _code ) ; }