objective-c - 如何在 ios 中定义 2x2 数组？

Question

如何在 ios 中定义 2x2 或 3X.. 数组？像这样

[name=john , age=21 , num=1]
[name=max , age=25 , num=2]
[name=petter , age=22 , num=3]

有列在 NSMutableArray 中，您只能添加带有对象的行；我想要这个数组[][]

Answer 1

看看你的例子，我不会用数组来做，或者不仅仅是数组。我有一组字典或一组具有属性名称、年龄和数字的自定义对象。使用字典:

NSArray* theArray = [NSArray arrayWithObjects:
    [NSDictionary dictionaryWithObjectsAndKeys:
        @"john", @"name",
        [NSNumber numberWithInt: 21], @"age",
        [NSNumber numberWithInt: 1], @"num",
        nil],
    [NSDictionary dictionaryWithObjectsAndKeys:
        @"max", @"name",
        [NSNumber numberWithInt: 25], @"age",
        [NSNumber numberWithInt: 2], @"num",
        nil],
    [NSDictionary dictionaryWithObjectsAndKeys:
        @"petter", @"name",
        [NSNumber numberWithInt: 22], @"age",
        [NSNumber numberWithInt: 3], @"num",
        nil],
    nil];