sass mapsource --->gulp

npm install --save-dev gulp-sass gulp-sourcemaps gulp-autoprefixer

var sass = require(‘gulp-sass‘);
var prefix = require(‘gulp-autoprefixer‘);
var  maps = require(‘gulp-sourcemaps‘);

var path = {
        scss: ‘./www/style/Myself.scss‘,
        css: ‘./www/style/‘
      }
 //编译sass       
gulp.task(‘sass‘, function() {
gulp.src( path.scss)
  .pipe(maps.init())
    .pipe(sass({ outputStyle: ‘compressed‘ }))
      .pipe(maps.write())
      .pipe(gulp.dest( path.css ))
});

gulp.task(‘autoprefix‘, function() {
gulp.src( path.css )
  .pipe(prefix(‘last 5 versions‘, ‘> 1%‘, ‘ie8‘))
  .pipe(gulp.dest( path.css ));  
});