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                ### 函數傳參與行間樣式 - 可變函數(不定參數):`arguments` - **參數數組** - 例子:求和 - 求所有參數的和 - 例子2:CSS 函數 - 判斷 `arguments.length` - 給參數取名,增強可讀性 - **取非行間樣式(不能用來設置):** - `obj.currentStyle[attr]` 只兼容 IE ,返回小數 - `getComputedStyle(obj, false)[attr]`,返回小數 - ```js // 解決兼容問題 // 封裝獲取計算后元素樣式函數 function getStyle(obj, name) { if (obj.currentStyle) { return obj.currentStyle[name]; } else { return getComputedStyle(obj, '') [name]; } } ``` - 復合樣式:`background` / `border ` 要用具體樣式名 `backgroundColor ` 等 - 單一樣式:` width` / `height` / `position`
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