JS 隐藏同级的元素后只显示JS文件
demo.html
<!DOCTYPE html> <html lang="zh-cn"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <p>头部信息</p> <div> <p>阅谁问君诵水落</p> <p>阅谁问君<p>阅谁问君诵水落</p> <p>阅谁问君诵水落</p><p>阅谁问君诵水落诵水落</p> <p>阅谁问君<p>阅谁问君诵水落</p><p>阅谁问君诵水落</p><p>阅谁问君诵水落</p><p>诵水落</p> <p>阅谁问君诵水落</p> <p>阅谁问君诵水落<p>阅谁问君诵水落</p><p>阅谁问君诵水落</p> <script type="text/javascript" src="demo.js"></script> <p>阅谁问君诵水落</p> <p>阅谁问君诵水落</p> <p>阅谁问君诵水落</p> <p>阅谁问君诵水落</p> <p>阅谁问君诵水落<p>阅谁问君诵水落</p><p>阅谁问君诵水落</p> </div> <p>备案信息</p> </body> </html>
demo.js
document.writeln("<div id=\"contSonOnly\">");
document.writeln("<p>内容内容内容内容内容内容内容内容内容</p>");
document.writeln("</div>");
window.onload=function(){
var contSonOnly=document.getElementById("contSonOnly");
var contParent=contSonOnly.parentNode;
var contSonList=contParent.children;
for(var i=0;i<contSonList.length;i++){
if(contSonList[i]!=contSonOnly){
contSonList[i].style.display="none";
}
}
}效果图：
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