nodejs抓取html页面内容

var http = require("http");
var iconv = require('iconv-lite');

var option = { 
    hostname: "stockdata.stock.hexun.com",
    path: "/gszl/s601398.shtml"
};                                                                                                                                                    

var req = http.request(option, function(res) {
    res.on("data", function(chunk) {
        console.log(iconv.decode(chunk, "gbk"));
    }); 
}).on("error", function(e) {
    console.log(e.message);
});

req.end();