(function () { var blob = new Blob([‘content‘], {type: ‘text/plain; charset=utf-8‘}), blobUrl = URL.createObjectURL(blob), node = document.createElement(‘a‘); node.href = blobUrl; node.download = ‘testSave.txt‘; node.click(); }());
原文：http://www.cnblogs.com/gentlemint/p/5377299.html