gulp sass使用

var gulp = require("gulp");
var sass = require("gulp-sass-china");
var dgbl = require("del-gulpsass-blank-lines");
var dirname = __dirname;

gulp.task('sass', function (){
gulp.src(dirname + '/sass/**/*.sass')
.pipe(sass({
outputStyle: 'compact'
})
.on('error', sass.logError))
.pipe(dgbl())
.pipe(gulp.dest(dirname + '/css'));
});

gulp.task('default', ['sass']);