在目标c中将NSArray过滤为新的NSArray

- (NSArray *)filteredArrayUsingPredicate:(NSPredicate *)predicate
{
    NSMutableArray *filteredArray = [NSMutableArray array];
    for (id item in originalArray) {
        if ([predicate evaluateWithObject:item]) {
            [filteredArray addObject:item];
        }
    }
    return filteredArray;
}

NSPredicate *predicate;
predicate = [NSPredicate predicateWithFormat:@"attribute == %@", @"value"]; // 过滤为等于value属性的元素
    NSArray *filteredArray = [array filteredArrayUsingPredicate:predicate];