gulpfile的文件内容如下：

var gulp = require("gulp");
var rev = require("gulp-rev");
var revReplace = require("gulp-rev-replace");
var useref = require("gulp-useref");
var filter = require("gulp-filter");
var uglify = require("gulp-uglify");
var csso = require("gulp-csso");

gulp.task("default",function () {
   var jsFilter = filter("**/*.js",{restore:true});
   var cssFilter = filter("**/*.css",{restore:true});
   var indexHtmlFilter = filter(["**/*","!**/index.html"],{restore:true});

   return gulp.src("src/index.html")
       .pipe(useref())
       .pipe(jsFilter)
       .pipe(uglify())
       .pipe(jsFilter.restore)
       .pipe(cssFilter)
       .pipe(csso())
       .pipe(cssFilter.restore)
       .pipe(indexHtmlFilter)
       .pipe(rev())
       .pipe(indexHtmlFilter.restore)
       .pipe(revReplace())
       .pipe(gulp.dest("dist"));
});