file之 fakepath

$("input[type='file']").on('change', function () {
    var oFReader = new FileReader();
    var file = document.getElementById('input-file').files[0];
    oFReader.readAsDataURL(file);
    oFReader.onloadend = function(oFRevent){
        var src = oFRevent.target.result;
        $('.content').attr('src',src);
        alert(src);
    }
});