html 简单的预缓存
切图生成html,加鼠标响应,预缓存
<style> .d4{ width:190; height:170; background-image: url(images/未标题-1_09-16.jpg); cursor: pointer; } .d4:hover{ width:190; height:170; background-image: url(images/1_09-16.jpg); cursor: pointer; } </style> <img src="images/1_09-16.jpg" style="display:none"> <div class="d4"></div>