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在html中嵌入base64编码的图片
好处：减少http请求，加快网页加载速度 坏处：html代码极度臃肿1<img title="base64" alt="" src="data:image/x-icon;base64,AAABAAEAgIAAAAEAIAAoCAEAFgAAACgAAACAAAAAAAEAAAEAIAAAAAAAAAABAAAAAAAAAAAAAAA
好处：减少http请求，加快网页加载速度 坏处：html代码极度臃肿1<img title="base64" alt="" src="data:image/x-icon;base64,AAABAAEAgIAAAAEAIAAoCAEAFgAAACgAAACAAAAAAAEAAAEAIAAAAAAAAAABAAAAAAAAAAAAAAA