如何在嵌入式樣式中獲取javascript變量

Question

我想在嵌入式樣式聲明中使用JavaScript變量屏幕作爲樣式backgroundattribute。

<div id ="content" style=" position: relative; top: -400px; left: 0px; width: 60px; height: 400px; z-index: 901;background-image: url(' + screen + ') "></div> 

Answer 1

document.write('<div id ="content" 
    style=" 
    position: relative; 
    top: -400px; 
    left: 0px; 
    width: 60px; 
    height: 400px; 
    z-index: 901; 
    background-image: url(' + screen + ') 
    "> 
</div>') 

或

document.getElementById('content').style.backgroundImage = screen;