使用QJSON解析数据：
JSon 字符串：
{"Code":1,"Msg":"",
"Data":[{"NetType":"电信","ServerName":"test1","ServerAddr":"127.0.0.1:30001","ServerIp":"55551","ServerPort":3000,"OnlineCount":300,"MaxOnlineCount":0},{"NetType":"电信","ServerName":"test1","ServerAddr":"::13000","ServerIp":"::1","ServerPort":3000,"OnlineCount":3,"MaxOnlineCount":0},{"NetType":"电信","ServerName":"test1","ServerAddr":"127.0.0.1:3000","ServerIp":"::1","ServerPort":3000,"OnlineCount":3,"MaxOnlineCount":0}]}