显示打开/关闭标志

Question

我希望我的网站根据当前时间显示“打开”或“关闭”。

我的问题是什么都不显示了在网站上，所以我试图找出什么毛病只能getElementById一次指定的元素，已申报代码

<script type="text/javascript"> 
var today = new Date(), 
var open = "Open", 
var closed = "Closed", 
var display = document.getElementById('hours-display'); 
if (today.getHours() >= 9 && today.getHours() < 18) { 
display.innerHTML = open; 
} else { 
display.innerHTML = closed; 
} 
</script> 


<div id="hours-display"></div> 

Answer 1

。此外，您使用逗号代替分号

<div id="hours-display"></div> 
<script> 
    var today = new Date(); 
    var display = document.getElementById("hours-display"); 
    if (today.getHours() >= 9 && today.getHours() < 18) { 
    display.innerHTML = "Open"; 
    } else { 
    display.innerHTML = "Closed"; 
    } 
</script> 

Answer 2

您声明变量的方式是问题。你应该从其他变量中删除变量，因为你使用的逗号是这样的：

var today = new Date(), 
open = "Open", 
closed = "Closed", 
display = document.getElementById('hours-display'); 
if (today.getHours() >= 9 && today.getHours() < 18) { 
    display.innerHTML = open; 
} else { 
    display.innerHTML = closed; 
}