js 动态加载 jq

var script=document.createElement("script"); 
script.type="text/javascript"; 
script.src="https://code.jquery.com/jquery-1.12.4.min.js"; 
document.getElementsByTagName('head')[0].appendChild(script); 

 

转载于:https://www.cnblogs.com/gaocong/p/11447397.html