-[__NSCFNumber length]: unrecognized selector sent to instance 0x1657c5c0
2014-09-24 14:47:39.170 StarShow[1948:60b] *** Terminating app due to uncaught exception ‘NSInvalidArgumentException‘, reason: ‘-[__NSCFNumber length]: unrecognized selector sent to instance 0x1657c5c0‘
*** First throw call stack:
错误原因：服务器那边传过来的是int类型的，我这边定义的对象的作品这个属性是string类型的。
hot.showWorks = [NSString stringWithFormat:
@"%@",[dictionary objectForKey:@"worknum"]];//Int作品数
-[__NSCFNumber length]: unrecognized selector sent to instance 0x1657c5c0 2014-09-24 14:47:39.170 St
原文：http://blog.csdn.net/u010241322/article/details/39523151
