域名解析 - 加载html - 加载js和css - Dom Ready - 加载图片等其他信息 - Dom Load
<div id="box"></div>
<script>
var span = document.createElement('span')
document.getElementById('box').appendChild(span)
console.log(document.getElementById('box').innerHTML)
var old = +new Date()
while (+new Date() - old < 1000) {}
</script>
<script>
try {
document.addEventListener('DOMContentLoaded', function() {
console.log('DOMContentLoaded')
}, false)
} catch(err) {
}
</script>
<script>
console.log('DOMContentLoading')
</script>
那么多广告js呦，DOM Ready找死呦