gulpfile.js配置 实现ctrl+s自动编译和刷新浏览器

var gulp = require("gulp"); //引进gulp模块
var uglify = require("gulp-uglify"); //js压缩
var minifyCss = require("gulp-minify-css"); //css压缩
var minifyHtml = require('gulp-minify-html'); //html压缩
var imagemin = require('gulp-imagemin'); //图片压缩
var sass = require('gulp-sass-china'); //sass编译
var livereload = require('gulp-livereload'); //刷新

//js压缩
gulp.task('minijs', function() {
gulp.src('src/js/*.js') //要压缩的js文件
.pipe(uglify()) //用uglify压缩
//.pipe(rename('yasuo.min.js')) //js重命名
.pipe(gulp.dest('dist/js')); //压缩后路径
})

//css压缩
gulp.task('minicss', function() {
gulp.src('src/css/*.css') //要压缩的css文件
.pipe(minifyCss()) //压缩css
.pipe(gulp.dest('dist/css')); //压缩后的路径
})

//html压缩
gulp.task('minihtml', function() {
gulp.src('src/*.html') //要压缩的html文件
.pipe(minifyHtml()) //压缩
.pipe(gulp.dest('dist')); //压缩后的路径
})

//图片压缩
gulp.task('miniimg', function() {
gulp.src('src/img/*.{jpg,png,gif,ico}') //要压缩的图片文件
.pipe(imagemin()) //压缩图片
.pipe(gulp.dest('dist/img')) //压缩后保存的路径
})

//sass编译
gulp.task('sass',function(){
gulp.src('src/sass/*.scss')
.pipe(sass())
.pipe(gulp.dest('src/css'))
.pipe(livereload());
})
//监听.scss
gulp.task('watch',function(){
livereload.listen();//要在这里调用listen()方法
gulp.watch('src/sass/*.scss',['sass'])
})

//用gulp实现编译
gulp.task('default',['sass','watch']);

//gulp compress 实现img/js/css/的压缩
gulp.task('compress',['minijs','minicss','miniimg']);