ios开发之--比较两个数组里面的值是否相同

NSArray *array1 = [NSArray arrayWithObjects:@"a", @"b", @"c", nil];
    NSArray *array2 = [NSArray arrayWithObjects:@"d",@"e", nil];
    bool bol = false;
    
    //创建俩新的数组
    NSMutableArray *oldArr = [NSMutableArray arrayWithArray:array1];
    NSMutableArray *newArr = [NSMutableArray arrayWithArray:array2];
    
    //对array1排序。
    [oldArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){
        return obj1 > obj2;
    }];
    
    //对array2排序。
    [newArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){
        return obj1 > obj2;
    }];
    
    if (newArr.count == oldArr.count) {
        
        bol = true;
        for (int i = 0; i < oldArr.count; i++) {
            
            id c1 = [oldArr objectAtIndex:i];
            id newc = [newArr objectAtIndex:i];
            
            if (![newc isEqualToString:c1]) {
                bol = false;
                break;
            }
        }
    }
    
    if (bol) {
        NSLog(@"两个数组的内容相同！");
    }
    else {
        NSLog(@"两个数组的内容不相同！");
    }