iOS NSMutableArray 建立,新增一筆,列舉

// NSMutableArray
//    alloc    init
//    addObject
//    for each

    NSMutableArray *myArray = [[NSMutableArray alloc] init];
    [myArray addObject:@"First line"];
    [myArray addObject:@"Second line"];
    [myArray addObject:@"Third line"];
    [myArray addObject:@"Fourth line"];
    [myArray addObject:@"Fifth line"];
   
    for (NSString *line in myArray) {
        NSLog(@"line: %@", line);
    }