<div class&#61;"wrap"><input type&#61;"text" value&#61;"点击显示/空白隐藏" /><div class&#61;"box">111111111111<br>111111111111<br>111111111111<br>111111111111<br>111111111111<br>div> div>
转:https://www.cnblogs.com/yc-web/p/9729238.html