管理资源吧首页>>>教程>>>编程>>>JavaScript教程>>>

JavaScript 动态添加脚本，并触发回调函数的实现代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title></title> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<body> 
<img src="/_New/_cj/myeditor/sysimage/space.gif" class="ewebeditor__script" _ewebeditor_fake_tag="script" _ewebeditor_fake_value="%3Cscript%3E%20%0D%0Afunction%20loadScript(url%2C%20callback)%7B%20%0D%0Avar%20script%20%3D%20document.createElement(%22script%22)%20%0D%0Ascript.type%20%3D%20%22text%2Fjavascript%22%3B%20%0D%0Aif%20(script.readyState)%7B%20%2F%2FIE%20%0D%0Ascript.onreadystatechange%20%3D%20function()%7B%20%0D%0Aif%20(script.readyState%20%3D%3D%20%22loaded%22%20%7C%7C%20%0D%0Ascript.readyState%20%3D%3D%20%22complete%22)%7B%20%0D%0Ascript.onreadystatechange%20%3D%20null%3B%20%0D%0Acallback()%3B%20%0D%0A%7D%20%0D%0A%7D%3B%20%0D%0A%7D%20else%20%7B%20%2F%2FOthers%20%0D%0Ascript.onload%20%3D%20function()%7B%20%0D%0Acallback()%3B%20%0D%0A%7D%3B%20%0D%0A%7D%20%0D%0Ascript.src%20%3D%20url%3B%20%0D%0Adocument.getElementsByTagName(%22head%22)%5B0%5D.appendChild(script)%3B%20%0D%0A%7D%20%0D%0A%3C%2Fscript%3E"> 
<img src="/_New/_cj/myeditor/sysimage/space.gif" class="ewebeditor__script" _ewebeditor_fake_tag="script" _ewebeditor_fake_value="%3Cscript%20type%3D%22text%2Fjavascript%22%3E%20%0D%0AloadScript(%22http%3A%2F%2Fajax.googleapis.com%2Fajax%2Flibs%2Fjquery%2F1.2.6%2Fjquery.min.js%22%2C%20function()%7B%20%0D%0Aalert('load%20success1!')%3B%20%0D%0A%7D)%3B%20%0D%0A%3C%2Fscript%3E"> 
</body> 
</html>

　　 [Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

教程首页更多教程