background:url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAATCAQAAADYWf5HAAAAkElEQVQoz7X QMQ5AQBCF4dWQSJxC5wwax1Cq1e7BAdxD5SL+Tq/QCM1oNiJidwox0355mXnG/DrEtIQ6azioNZQxI0ykPhTQIwhCR+BmBYtlK7kLJYwWCcJA9M4qdrZrd8pPjZWPtOqdRQy320YSV17OatFC4euts6z39GYMKRPCTKY9UnPQ6P+GtMRfGtPnBCiqhAeJPmkqAAAAAElFTkSuQmCC')
我们把url里面的内容复制到浏览器地址栏
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAATCAQAAADYWf5HAAAAkElEQVQoz7X QMQ5AQBCF4dWQSJxC5wwax1Cq1e7BAdxD5SL+Tq/QCM1oNiJidwox0355mXnG/DrEtIQ6azioNZQxI0ykPhTQIwhCR+BmBYtlK7kLJYwWCcJA9M4qdrZrd8pPjZWPtOqdRQy320YSV17OatFC4euts6z39GYMKRPCTKY9UnPQ6P+GtMRfGtPnBCiqhAeJPmkqAAAAAElFTkSuQmCC 就会显示图标,然后右键选择图片另存为就可以保存图片。
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