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console 命令行工具 X clear

                    
>
console
<div class="box">
	<div class="img-box">
		<img src='https://1588292574.rsc.cdn77.org/photo/3aab94a25c659f737f41dd62e234457d-0-view.jpg'/>
	</div>
</div>
.box{
	width:200px
}
.img-box{
	width:100%;
	position:relative;
	padding-top:100%;
}
img{
	position:absolute;
	top:0;
	width:100%;
	bottom:0;
}