对object[，]的c#和Linq查询

object[,] array = new object[,]
{
    { "John", 25, true },
    { "Alice", 30, false },
    { "Bob", 35, true }
};

// 使用for循环遍历多维数组
for (int i = 0; i < array.GetLength(0); i++)
{
    for (int j = 0; j < array.GetLength(1); j++)
    {
        Console.WriteLine(array[i, j]);
    }
}

// 使用LINQ查询筛选满足条件的元素
var query = from object item in array
            where item is string && ((string)item).StartsWith("J")
            select item;

foreach (var item in query)
{
    Console.WriteLine(item);
}