首先登陆慕课网，然后F12看提交评论的时候请求的接口的信息，然后写到对应的options的值。
var http =require('http');
var querystring = require('querystring'); var postdata = querystring.stringify({ 'content':'娴嬭瘯鍟婂晩a a a 鍟?, 'mid':'8837' }) var options = { hostname : 'www.imooc.com', port : 80, path: '/course/docomment', method:'POST', headers:{ 'Accept':'application/json, text/javascript, */*; q=0.01', 'Accept-Encoding':'gzip, deflate', 'Accept-Language':'zh-CN,zh;q=0.8', 'Connection':'keep-alive', 'Content-Length': postdata.length, 'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8', 'Cookie':'PHPSESSID=4fjic91q4m98q864a69jn83jd2; imooc_uuid=2b34557e-c5aa-4a65-b32f-e725b7f56f72; imooc_isnew=1; imooc_isnew_ct=1484637931; loginstate=1; apsid=UyMjY2YWJkYTQwMjhmODZlNjBiMjUxODFlYTk4YWIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAANDc1NTc0MQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAyMzIzNjIzMjAzQHFxLmNvbQAAAAAAAAAAAAAAAAAAAGM2NDBhOTNhNDBlNzEzZjBlNDlhMjViYTM2YzRiMDQ3N859WDfOfVg=NW; last_login_username=198665740@qq.com; Hm_lvt_f0cfcccd7b1393990c78efdeebff3968=1484637881; Hm_lpvt_f0cfcccd7b1393990c78efdeebff3968=1484639961; IMCDNS=0; cvde=587dc6ebaf7c0-156 ', 'Host':'www.imooc.com', 'Origin':'http://www.imooc.com', 'Referer':'http://www.imooc.com/comment/348', 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.87 Safari/537.36', 'X-Requested-With':'XMLHttpRequest' } } var req = http.request(options,function(res){ console.log('Status:'+ res.statusCode) console.log('Status:'+ JSON.stringify(res.headers)) res.on('data',function(data){ console.log(Buffer.isBuffer(data)) console.log(typeof data) }) res.on('end',function(){ console.log('娴嬭瘯瀹屾瘯') }) }) req.on('error',function(e){ console.lof('Error:'+ e.message ) }) req.write(postdata) req.end()