json反序列化

Error Domain=NSCocoaErrorDomain Code=3840 "Number with leading zero around character 21190."
 UserInfo={NSDebugDescription=Number with leading zero around character 21190.}

server返回数据

"tradeTime":
[0900,1015,20190219,20190219],
[1030,1130,20190219,20190219],
[1330,1500,20190219,20190219]]

解决：取消0900前面的0，或者把返回的数据类型转为string