字符串反序輸出字符串

Console.Write("請輸入一個字符串：");
string str = Console.ReadLine();
string reverse = "";//用於存放反序后的字符串
for (int i = str.Length - 1; i >= 0; i--)
{
　　reverse += str[i];
}
Console.WriteLine(reverse+":串符字個一入輸請");
Console.ReadLine();