TA貢獻446條經驗 獲得超754個贊
<!DOCTYPE html>
<input id="input" type="file">
<div id="show"></div>
<script>
var input = document.getElementById("input");
input.onchange = function() {
if(!input.value) return;
var file = input.files[0];
if(!/image\/.+/.test(file.type)) return;
var reader = new FileReader();
reader.onload = function() {
document.getElementById('show').innerHTML = '<img src="' + this.result + '">';
}
reader.readAsDataURL(file);
}
</script>
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