JS 生成txt

            function download(title, text) {
                var element = document.createElement('a');
                element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
                element.setAttribute('download', title);

                element.style.display = 'none';
                document.body.appendChild(element);

                element.click();

                document.body.removeChild(element);
            }