Question

每当我把一个新的物体NSMutable Dictionay添入我的NSMutable Array时,我如何取而代之?

例如:

[appDelegate.tracksDict setObject:currentTrackTitle forKey:@"track_title"];
[appDelegate.tracksDict setObject:currentTrackTopic forKey:@"topic"];
[appDelegate.tracksArray addObject:[appDelegate.tracksDict copy]];

印刷

2010-10-01 14:03:35.021 XML[48889:207]Tracks Array: {
    topic = "Cold Calling";
    "track_title" = "Sleeping and selling";
}
2010-10-01 14:03:35.021 XML[48889:207]Tracks Array: {
    topic = "Gate Keeper";
    "track_title" = "Selling like a chicken";
}
2010-10-01 14:03:35.021 XML[48889:207]Tracks Array: {
    topic = "Gate Keeper";
    "track_title" = "Don t you try to sell";
}

......

2010-10-01 14:03:35.021 XML[48889:207]Tracks Array: {
    topic = "Cold Calling";
    track_title = "Sleeping and selling";

    topic = "Gate Keeper";
    track_title = "Selling like a chicken";

    topic = "Gate Keeper";
    track_title = "Selling like a chicken";
}

我肯定说,我不很了解语言,那是一件事。

Answer 1

你的问题很难根据你所贴出的“印本”来回答,但是,你像想要的是NSDictionary物体的NSArray一样。 NSDictionary只能拥有一个特定关键物体,但可以(虚拟)拥有无限钥匙。它看着你们需要的是建立一系列的独裁者,每个轨道都有一个。

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