js圖檔上傳擷取本地位址預覽

2023-05-09 12:45:33

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

function getFileUrl(sourceId) {

var url;

if (navigator.userAgent.indexOf("MSIE")>=1) { // IE

url = document.getElementById(sourceId).value;

} else if(navigator.userAgent.indexOf("Firefox")>0) { // Firefox

url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));

} else if(navigator.userAgent.indexOf("Chrome")>0) { // Chrome

url = window.URL.createObjectURL(document.getElementById(sourceId).files.item(0));

}

return url;

}

function preImg(sourceId, targetId) {

var url = getFileUrl(sourceId);

var imgPre = document.getElementById(targetId);

imgPre.src = url;

}

</script>

</head>

<body>

</form>

</body>

</html>

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