1.gulpfile.js

var gulp = require('gulp');const babel = require('gulp-babel');gulp.task('default', () => {    return gulp.src('src/**/*.js')        .pipe(babel({            presets: ['es2015'],      plugins:['babel-plugin-transform-es2015-modules-amd']        }))        .pipe(gulp.dest('dist'));});

备注：

a. babel  -m选项不起，要使用transform plugins

b. 使用scripts 调用非global安装的Gulp

{  "name": "es6",  "version": "1.0.0",  "description": "",  "main": "main.js",  "scripts": {    "babel": "babel -d lib/ src/",    "gulp": "./node_modules/.bin/gulp"  },  "author": "",  "license": "ISC",  "devDependencies": {    "babel-cli": "^6.7.7",    "babel-core": "^6.7.7",    "babel-polyfill": "^6.7.4",    "babel-preset-es2015": "^6.6.0",    "babel-preset-stage-0": "^6.5.0",    "gulp": "^3.9.1",    "gulp-babel": "^6.1.2"  },  "dependencies": {    "amdefine": "^1.0.0",    "requirejs-babel": "0.0.9"  }}