<input id="input" type="file">
<img id="img" src=""/>
<script>
var inpDom = document.getElementById("input");
var imgDom = document.getElementById("img");
inpDom.onchange = function(e){
let file = e.target.files[0]
if(FileReader){
let fr = new FileReader()
fr.onload = (e)=>{
//base64编码
console.log(e.target.result)
imgDom.img.src = e.target.result
}
fr.readAsDataURL(file)
}
}
</script>
h5中的FileReader
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转载自blog.csdn.net/angle_lzc/article/details/80353432
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