text: const gulp = require('gulp');
  const babel = require('gulp-babel');
  
  gulp.task('build', () => {
    gulp.src('src/**/*.js').
      pipe(babel()).
      pipe(gulp.dest('dist'));
  });
  
  gulp.task('default', ['build'], () => {
    // 将你的默认的任务代码放在这
  });
  