我试图在Gulp中对Browserify的输出进行uglify,但它不起作用。gulpfile.jsvarbrowserify=require('browserify');vargulp=require('gulp');varuglify=require('gulp-uglify');varsource=require('vinyl-source-stream');gulp.task('browserify',function(){returnbrowserify('./source/scripts/app.js').bundle().pipe(source('bundle.js'))