iOS中将，NSArray转换成json数据

iOS中，将NSArray转换成son数据

 NSError
*error =
nil;

   
NSData *jsonData = [NSJSONSerialization
dataWithJSONObject:data

                                                      
options:kNilOptions

                                                        
error:&error];

   

   
NSString *jsonString = [[NSString
alloc]
initWithData:jsonData

                                                
encoding:NSUTF8StringEncoding];