var url = require('url');
var superagent = require('superagent');
var cheerio = require('cheerio');
var eventproxy = require('eventproxy');
var targetUrl = 'http://www.boc.cn/sourcedb/whpj/index.html';
var data =new Array();
var checkarray = [""];
superagent.get(targetUrl).end(function(err,res){
    var $ = cheerio.load(res.text, {decodeEntities: false});//防止中文乱码
   $('body').find('td').each(function(index,ele){
        var str = $(ele).html().trim();
        data.push(str);
    });
   for(var i=0;i<data.length;i++){
    if(data[i]=="美元"){
        //console.log(typeof data[i+5]);
        console.log("美元: "+data[i+5]);
        console.log("time is:"+data[i+6]+"  "+data[i+7]);
    }
    }
   }
});

(╯‵□′)╯︵┻━┻ 网上那些不先调用find方法的 你们是怎么全遍历出来的