我有一段看起来很简单的代码让我完全困惑。NSIntegerymax;NSIntegerymin;NSIntegernumberIndex1;NSIntegernumberIndex2;for(NSNumber*theNumberinarray2){if([theNumberintegerValue]>ymax){ymax=[theNumberintegerValue];numberIndex1=[array2indexOfObject:theNumber];}}for(NSNumber*theNumberinarray2){if([theNumberintegerValue]NSLog