js 实现图片上传

var input1 = document.querySelector(\'#upload\');//获取input
input1.addEventListener(\'change\',upload)

function upload(){
        var oFReader = new FileReader();
        oFReader.readAsDataURL(this.files[0])
        oFReader.onload = function (event) {
            tapDatas.file = event.target.result;
            imgs.src = event.target.result;
            console.log(tapDatas, \'file文件\');
        }
    }