nodejs爬取的数据是unicode怎么办

解决办法为转成二进制读取数据 encoding：binary
request({
uri: website_url,
method: 'GET',
encoding: 'binary'
}, function (error, response, body) {
body = new Buffer(body, 'binary');
conv = new iconv.Iconv('WINDOWS-1251', 'utf8');
body = conv.convert(body).toString();
}
});