页码插入JS脚本

1 (function() {
2   var obj = document.createElement("script");
3   obj.type = "text/javascript";
4   obj.src = "https://your_script_file.js";
5   document.getElementsByTagName("head")[0].appendChild(obj);
6 } ());

 

<a href='javascript:(function(){var a=document.createElement("script");a.type="text/javascript";a.src="https://your_script_file.js";document.getElementsByTagName("head")[0].appendChild(a)}());'>插入</a>