NSArray

// ----------------------数组------------------------------------

    // 初始化

    NSArray *array0 = [NSArray array]; // 空数组

    NSArray *array1 = [[NSArray alloc] initWithObjects:@"1",@"2",@"3",@"4",@"5",nil];

    NSArray *array2 = [[NSArray alloc] initWithArray:array1];

    NSArray *array22 = [array1 subarrayWithRange:NSMakeRange(0, 1)];

    

    // 数组取值

    NSString *str = [array1 objectAtIndex:1];

    NSString *firstStr = [array1 firstObject];

    NSString *lastStr = [array1 lastObject];

    

    // 数组索引

    int index = [array1 indexOfObject:@"1"];

    NSLog(@"index = %i", index);

    

    NSLog(@"str = %@", str);

    NSLog(@"array = %@, count = %ld", array2, [array2 count]);

    

    // 数组包含

    BOOL containtsObj = [array1 containsObject:@"2"];

    

    // -- 可变数组

    NSMutableArray *array3 = [[NSMutableArray alloc] initWithCapacity:1];

    [array3 addObjectsFromArray:array2];

    [array3 addObject:@"333"];

    [array3 removeObjectAtIndex:0];

    [array3 setObject:@"000" atIndexedSubscript:0];

    

    NSLog(@"array3 = %@", array3);

    

    // 深拷贝

    NSMutableArray *newArray = (NSMutableArray*)CFBridgingRelease(CFPropertyListCreateDeepCopy(kCFAllocatorDefault, (CFPropertyListRef)array3, kCFPropertyListMutableContainers));

    NSLog(@"newArray = %@", newArray);

    

    //数组合并

    NSString *str1 = [newArray componentsJoinedByString:@";"];

    NSLog(@"str1 = %@", str1);

    

    // 数组排序

    // 1.

    NSArray *array11 = [NSArray arrayWithObjects:@"1",@"5",@"2",@"6",@"3",@"4",nil];

    NSArray *array12 = [array11 sortedArrayUsingSelector:@selector(compare:)];

    NSLog(@"array12=%@", array12);

    

    //2. 比较英语顺序

    NSArray *array13 = [NSArray arrayWithObjects:@"zhangsan", @"lisi", @"wangwu", @"zhangyi", @"lisan", nil];

    NSArray *array14 = [array13 sortedArrayUsingComparator:^NSComparisonResult(NSString *str1, NSString *str2)

                        {

                            NSComparisonResult result = [str1 compare:str2];

                            return result;

                        }];

    NSLog(@"array14=%@", array14);