改变基础路径
fet.setBase('http://admin.cmstop.dev/');
改变过期时间 单位ms
fet.setTimeout(15000); // 15s
设置alias
fet.setAlias('SPEC_URL', 'http://app.cmstop.dev/apps/special/');
fet.setAlias({
SPEC_URL:'http://app.cmstop.dev/apps/special/',
DIY_URL:'http://app.cmstop.dev/apps/diy/'
});
