# 在一个任务中使用多个文件来源 ``` // npm install --save-dev gulp merge-stream var gulp = require('gulp'); var merge = require('merge-stream'); gulp.task('test', function() { var bootstrap = gulp.src('bootstrap/js/*.js') .pipe(gulp.dest('public/bootstrap')); var jquery = gulp.src('jquery.cookie/jquery.cookie.js') .pipe(gulp.dest('public/jquery')); return merge(bootstrap, jquery); }); ``` `gulp.src` 会以文件被添加的顺序来 emit： ``` // npm install gulp gulp-concat var gulp = require('gulp'); var concat = require('gulp-concat'); gulp.task('default', function() { return gulp.src(['foo/*', 'bar/*']) .pipe(concat('result.txt')) .pipe(gulp.dest('build')); }); ```