ios--基本数据类型应用(int ,float,double ,NSString,NSNumber)
阅读更多基本数据类型应用(int,float,double,NSString,NSNumber)People*stu=[Peoplenew];NSLog(@"%@",stu.description);//definedoubleNSNumber*num=[NSNumbernumberWithDouble:[@"10"doubleValue]];NSLog(@"%@",num);NSString*n