javascript 動態載入 css 方法總結

來源:互聯網
上載者:User

1. 用在外部CSS檔案中載入必須的檔案
@importurl(style.css);
//只能用在CSS檔案中或者style標籤中
2. 簡單的在頁面中載入一個外部CSS檔案
document.createStyleSheet(cssFile);
2. 用createElement方法建立CSS的Link標籤
varhead=document.getElementsByTagName('HEAD').item(0);
varstyle=document.createElement('link');
style.href='style.css';
style.rel='stylesheet';
style.type='text/css';
head.appendChild(style);
下面是經常會用到的兩個函數. 複製代碼 代碼如下:functionloadJs(file){
  varscriptTag=document.getElementById('loadScript');
  varhead=document.getElementsByTagName('head').item(0);
  if(scriptTag)head.removeChild(scriptTag);
  script=document.createElement('script');
  script.src="../js/mi_"+file+".js";
  script.type='text/javascript';
  script.id='loadScript';
  head.appendChild(script);
}
functionloadCss(file){
  varcssTag=document.getElementById('loadCss');
  varhead=document.getElementsByTagName('head').item(0);
  if(cssTag)head.removeChild(cssTag);
  css=document.createElement('link');
  css.href="../css/mi_"+file+".css";
  css.rel='stylesheet';
  css.type='text/css';
  css.id='loadCss';
  head.appendChild(css);
}
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