搜索引擎采集URL

google:

var h3 = document.getElementsByTagName(‘h3‘);for(var i=0;i<h3.length;i++){var a = h3[i]. getElementsByTagName(‘a‘);console.log(a[0].href);}

bing:

var h3 = document.getElementsByTagName(‘h2‘);for(var i=0;i<h3.length;i++){ ???var a = h3[i]. getElementsByTagName(‘a‘); ???console.log(a[0].href);}