old_contents: /**
   * Document   : gulp自动化重载页面
   * Created on : 2015 8
   * Author     : Kevin Zhong
   * License    : MIT
   * github     : https://github.com/willworks 
   * Description: gulp自动化重载页面
   * Copyright (c) 2015 Kevin Zhong
   */
  
  //引入插件
  var gulp = require('gulp'),//引入基础库
      browserSync = require('browser-sync');//browser-sync服务器刷新
  
  gulp.task('server', function() {
      browserSync({
          files: "**",
          server: {
              baseDir: "./app/"
          }
      });
  });
  
  //运行Gulp时，默认的Task
  gulp.task('default', ['server']);
new_contents: /**
   * Document   : browser-sync自动化重载页面
   * Created on : 2015 12
   * Author     : Kevin Zhong
   * License    : MIT
   * github     : https://github.com/willworks 
   * Description: browser-sync自动化重载页面
   * Copyright (c) 2015 Kevin Zhong
   */
  
  //引入插件
  var gulp = require('gulp'),//引入基础库
      browserSync = require('browser-sync');//browser-sync服务器刷新
  
  gulp.task('server', function() {
      browserSync({
          files: "**",
          server: {
              baseDir: "./app/"
          }
      });
  });
  
  //运行Gulp时，默认的Task
  gulp.task('default', ['server']);
subject: update gulpfile