static void Main(string[] args) {
string[,] strings = new string[10,2];
for (int j = 0; j < 10; j++) {
strings[j, 0] = $"{j}.0";
strings[j, 1] = $"{j}.1";
}
int count = 0;
foreach (string s in strings) {
count++;
if (count% 2==0)
Console.WriteLine(s);
else
Console.Write(s + " ");
}
Console.WriteLine("string[,] Test Over!");
Console.WriteLine();
string[][] strings1 = new string[10][];
for (int j = 0; j < 10; j++)
strings1[j] = new string[] { $"{j}.0", $"{j}.1" };
foreach (string[] s in strings1)
Console.WriteLine(s[0] + " " + s[1]);
Console.WriteLine("string[][] Test Over!");
Console.ReadKey();
}