截取字符，求助

{mod":0, "todaycount":18, "totalcount":1409244}, {"mod":1, "todaycount":0,
"totalcount":0}, {"mod":3, "todaycount":0, "totalcount":10}, {"mod":8,
"todaycount":0, "totalcount":98},
需求：现在需要截取到第一个todaycount后面的值，然后再去第二个totalcount后面的值
没有思路，求指导