声明数组的锯齿状数组

Question

我在 C# 中搜索并没有找到解决方案

我已经声明并分配了数组：

string[] arr1 = {"a","b","c","d","e","f"};
string[] arr2 = {"1","2","3","4","5","6"};
string[] arr3 = {"s","t","a","c","k","o"};
string[] arr4 = {"v","e","r","f","l","w"};

我想从这些数组中创建一个锯齿状数组，但没有成功。

string[,] port = new string[]
{
    new string[] arr1[],
    new string[] arr2[],
    new string[] arr3[],
    new string[] arr4[],
};

我哪里错了？

我的程序将生成随机 ints 以调用锯齿状数组中的值

Random random = new Random();
int x = random.Next(0,5);
int y = random.Next(0,3);
Console.WriteLine(port[y,x]);

Answer 1

有两个错误：

您声明的不是 锯齿状 数组，而是多维数组。由于您的 "inner" 数组已经定义，因此您需要一个 数组的数组 ，称为 "jagged" 数组。
您不需要在声明中使用 new string[]，因为您已经声明了内部数组

所以这应该有效：

string[][] port = new string[][]
{
    arr1, arr2, arr3, arr4
};

或者使用更短的数组初始值设定项：

string[][] port = { arr1, arr2, arr3, arr4 };

要访问此数组，请使用：

Console.WriteLine(port[y][x]);

Answer 2

试试这个：

string[] arr1 = { "a", "b", "c", "d", "e", "f" };
string[] arr2 = { "1", "2", "3", "4", "5", "6" };
string[] arr3 = { "s", "t", "a", "c", "k", "o" };
string[] arr4 = { "v", "e", "r", "f", "l", "w" };

string[][] port = new string[4][];
port[0] = arr1;
port[1] = arr2;
port[2] = arr3;
port[3] = arr4;

或者简单地说：

string[][] port = new string[][] { arr1, arr2, arr3, arr4 };

用法：

string test = port[1][5];

声明数组的锯齿状数组

Jagged array by declared arrays

c#

arrays

jagged-arrays