用于组合两个string[]数组的LINQ查询

string[] array1 = { "apple", "banana", "orange" };
string[] array2 = { "cat", "dog", "bird" };

var combinedArray = from item1 in array1
                    from item2 in array2
                    select item1 + " " + item2;

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

string[] array1 = { "apple", "banana", "orange" };
string[] array2 = { "cat", "dog", "bird" };

var combinedArray = array1.SelectMany(item1 => array2, (item1, item2) => item1 + " " + item2);

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

apple cat
apple dog
apple bird
banana cat
banana dog
banana bird
orange cat
orange dog
orange bird