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51问答网 > jsp有<c:if>标签判断像置顶或取消置顶这样的，html怎么去做这种判断

jsp有<c:if>标签判断像置顶或取消置顶这样的，html怎么去做这种判断

2025-03-15 21:47:19

推荐回答（1个）

回答1：

那个c:if标签是java的jsp才能用，你html里只能用js去操作dom的显示和隐藏。

var topvalue=设法获取list.top的值；
if(topvalue == 0)
{
var top0=document.getElementById("top0");
var top1=document.getElementById("top1");
top0.style.display="block";
top1.style.display="none";
}
else
{
var top0=document.getElementById("top0");
var top1=document.getElementById("top1");
top0.style.display="none";
top1.style.display="block";
}

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