gulp实时刷新页面

cnpm install -g gulp

cnpm install -save-dev gulp

var gulp = require(‘gulp‘);
var browserSync = require(‘browser-sync‘);
var reload = browserSync.reload;


gulp.task(‘serve‘, function() {
  browserSync({
    server: {
      baseDir: ‘app‘
    }
  });

  gulp.watch([‘*.html‘, ‘styles/**/*.css‘, ‘scripts/**/*.js‘], {cwd: ‘app‘}, reload);
});

gulpfile.js
app/
  styles/
    main.css
  scripts/
    main.js
  index.html

cnpm install -save-dev  browser-sync

http://www.gulpjs.com.cn/docs/recipes/server-with-livereload-and-css-injection/