download file

download.js

/**
 * 只支持chrome
 **/
function downloadFile (type, filename, filecon) {
	filename = prompt('填写保存的名字', filename);
	var blob = new Blob([filecon], { type: type });
	var url = window.webkitURL.createObjectURL(blob);
	var a = document.createElement("a");
	a.download = filename;
	a.href = url;
	a.click();
}