html代码
<input type="file" name="file" multiple id="file">
javascript 代码
var file=document.getElementById("file").files[0]
var src=getObjectURL(file)
var getObjectURL = function (file) {
var url = null;
if (window.createObjectURL != undefined) { // basic
url = window.createObjectURL(file);
} else if (window.URL != undefined) { // mozilla(firefox)
url = window.URL.createObjectURL(file);
} else if (window.webkitURL != undefined) { // webkit or chrome
url = window.webkitURL.createObjectURL(file);
}
return url;
}