1。普通数组排序：
NSMutableArray *arr = [NSMutableArray arrayWithObjects:@"0",@"8",@"6",@"1",nil];
NSArray *sortedArray = [arr sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2){
if ([obj1 intValue] > [obj2 intValue]){
return NSOrderedDescending;
}
if ([obj1 intValue] < [obj2 intValue]){
return NSOrderedAscending;
}
return NSOrderedSame;
}];
NSLog(@"排序后的数组：%@",sortedArray);
2.数组中有字典的排序：
NSMutableArray *myMutableArr = [[[NSMutableArray alloc] init] autorelease];
NSDictionary *dicOne = [NSDictionary dictionaryWithObjectsAndKeys:@"1",@"price",@"2",@"number", nil];
NSDictionary *dicTWo = [NSDictionary dictionaryWithObjectsAndKeys:@"6",@"price",@"5",@"number", nil];
NSDictionary *dicThree = [NSDictionary dictionaryWithObjectsAndKeys:@"3",@"price",@"1",@"number", nil];
NSDictionary *dicFour = [NSDictionary dictionaryWithObjectsAndKeys:@"4",@"price",@"3",@"number", nil];
[myMutableArr addObject:dicOne];
[myMutableArr addObject:dicTWo];
[myMutableArr addObject:dicThree];
[myMutableArr addObject:dicFour];
NSArray *sortDescriptors = [NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"price" ascending:YES]];
[myMutableArr sortUsingDescriptors:sortDescriptors];
NSLog(@"排序后的数组%@",myMutableArr);
经验证，上面的方式相当方便，尤其是数组中有字典的情况。
