t:dgFunOpt使用图片
<t:dgFunOpt title="删除" funname="update" urlclass="ace_button"urlfont="fa-search"></t:dgFunOpt>这个标签怎么能用图片呢?data:image/png;base64,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
如图,就是想用图片替换文字
可以改造下标签的实现或者扩展一个属性来实现你要的效果
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