1.前台表单
<form method="post" enctype ="multipart/form-data"><input type="file" name="pics"/><input type="submit" value="提交" /></form>
2.路由（routes/index.js）
app.post('/upload',function (req,res){var _files = req.files.pics;var item ,_name ,_tmp;item = _files, _name=item.name;if (_name && item.path) {//这里需要判断文件名称和路径是否为空var tmpPath = item.path, type = item.type ,extension_name = '',tmp_name = (Date.parse(new Date()) / 1000) + '' + (Math.round(Math.random() * 9999));//生成随机名称switch (type) {//判断文件类型case 'image/pjpeg': extension_name = 'jpg'; break;case 'image/jpeg': extension_name = 'jpg'; break;case 'image/gif': extension_name = 'gif'; break;case 'image/png': extension_name = 'png'; break;case 'image/x-png': extension_name = 'png'; break;case 'image/bmp': extension_name = 'bmp'; break;default: if(_name.indexOf('.')<=0) return;//其他文件则默认上传else {_tmp = _name.split('.');extension_name = _tmp[_tmp.length-1]; break;}}tmp_name = tmp_name + '.' + extension_name,targetPath = 'public/upload/' + tmp_name,//设置上传路径is = fs.createReadStream(tmpPath),os = fs.createWriteStream(targetPath);util.pump(is, os, function() {fs.unlinkSync(tmpPath);console.log('upload success : ',targetPath);res.json({//设置返回值error : 0,url : 'upload/' + tmp_name,title : tmp_name,message : tmp_name});});};});
，伟人之所以伟大，是因为他与别人共处逆境时，
