PC端評(píng)論接口：
多說： http://duoshuo.com/
暢言： http://changyan.kuaizhuan.com

//評(píng)論功能
var http = require('http')
var querystring = require('querystring')
var postData = querystring.stingify({
    'content' : '評(píng)論',
     //提交的ID  在表單數(shù)據(jù)：查看mid
    'cid': 8837
})
var options = {
    hostname: 'www.imooc.com',
    port:80,
    //路徑 查看消息頭： 請(qǐng)求網(wǎng)址
    path:'/course/ajaxmediauser', 
    method:'POST',
    headers:{
        'Host':'www.imooc.com',
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0',
        'Accept':'application/json, text/javascript, */*; q=0.01',
        'Accept-Language':'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
        'Accept-Encoding':'gzip, deflate'
        'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
        'X-Requested-With':'XMLHttpRequest',
        'Referer':'http://www.imooc.com/video/8837',
        'Content-Length':'46',
        'Connection':'keep-alive',
        'Pragma':'no-cache',
        'Cache-Control':'no-cache'
    }
}

var req = http.request(options, function(res){
    console.log('Status:' + res.statusCode)
    console.log('headers:' + JSON.stringify(res.headers))

    res.on('data', function(chunk){
        console.log(Buffer.isBuffer(chunk))
        console.log(typeof chunk)
    })

    res.on('end', function(){
        console.log('評(píng)論完畢！')
    })
})

req.on('error', function(e){
    console.log('Error:' + e.message)
})

req.write(postData)
req.end()