小编Kaz*_*u25的帖子

    var downloadAsFile = function(fileName, content) {
      var a = document.createElement('a');
       a.download = fileName;
	   a.href = 'data:application/vnd.ms-excel,'+encodeURIComponent(content);
	   a.click();
    };

 <button type="submit" id="output_button" onclick="downloadAsFile()">Download</button>