问如何将NSManagedObject存储在(NSDictionary)？

提问于 2018-01-26 00:24:33

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下面是如何创建字典：

NSDictionary *dictionary = 
    [NSDictionary dictionaryWithObject: voiceMemo forKey:@"voiceMemo"];

同样的结果

NSDictionary *dictionary = 
    [NSDictionary dictionaryWithObject: (NSData *) voiceMemo forKey:@"voiceMemo"];

但是：

NSDictionary *dictionary = 
    [NSDictionary dictionaryWithObject: voiceMemo.attribute forKey:@"attribute"];

NSDictionary应该能够存储数据对象

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