$('body').on('change', '.add-btn',function(e){    var id = $('.admin-upload-inline').length + 1;    var iconLayout = $('<div class="admin-upload-inline add-btn pointer" id="icon-layout-'+id+'">');    var fileInput = $(      '<input type="hidden" id="file'+id+'" name="icon[]" class="admin-upload" value="">'    + '<img src="../images/30.png" id="pre'+id+'" class="admin-upload-review">');    iconLayout.append(fileInput);    $(".addend-display").append(iconLayout);    console.log(id);    var reader = new FileReader();    reader.onload = function(e) {      $('#pre' + id).attr('src', e.target.result);      $('#file' + id).attr('value', e.target.result);      console.log(e.target.result);      reader.readAsDataURL($('#file'+id));    }<div class="admin-upload-inline add-btn pointer">        <input type="file" id="file1" name="icon[]" class="admin-upload" accept="image/jpeg, image/png, image/jpg">        <img src="../images/30.png" id="pre1" class="admin-upload-review">        <i class="material-icons upload_cover_icon admin-upload-icon-add">add_circle_outline</i>      </div>      <div class="addend-display">      </div>請(qǐng)問如何當(dāng)我按下 add-btn 後，圖片能夠經(jīng)由 FileReader 產(chǎn)生的base64直接丟到我生成過的 隱藏欄位和 img裡面？我發(fā)現(xiàn)我都抓不到 data64.....補(bǔ)充！foreach ($_POST['icon'] as $value) {      echo $value;      preg_match('/^(data:\s*image\/(\w+);base64,)/', $value, $result);        $file_ext = '.'.$result[2];        file_put_contents('../../images/product/'.md5(time()).$file_ext, base64_decode(str_replace($result[1], '', $value)));    }怎麼都下載不到全部的 base64，都是只有抓到最後一個(gè)？