Question

JS怎么在页面的head里面添加二个新的meta

<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />

Answer 1

var oMeta = document.createElement('meta');
oMeta.charset = 'utf-8';
document.getElementsByTagName('head')[0].appendChild(oMeta);

追问

帮我写完整吧