HTML 内容如下：

JavaScript 内容如下：

var reader = new FileReader();$("#files").on('change',function(e){    var input = document.getElementById("files");    var files = this.files;    reader.readAsDataURL(files[0]);    reader.onload = function(e){        console.log(e);        if(dataArr.length<=4){            $(".uploadImg .img").remove();            dataArr.push(e.target.result);            imgArr.push(files);            $(".uploadName .length").text(dataArr.length+'/5');            var html = template('imgUploads',{dataArr:dataArr});            $(".before").before(html);        }    }    console.log(imgArr);})