c# - 反转 foreach 循环操作

Question

我想将我的每个字符串字符转换/查找为 (int) 并反转此操作。我设法完成了第一部分，但第二部分给我带来了一些问题。

string input;
string encrypt = ""; string decrypt = "";

input = textBox.Text;
foreach (char c in input)
{
    int x = (int)c;
    string s = x.ToString();
    encrypt += s;
}
MessageBox.Show(encrypt);

foreach (int i in encrypt)
{
    char c = (char)i;
    string s = c.ToString();
    decrypt += c;
}
MessageBox.Show(decrypt);

谢谢!

Answer 1

根据我上面的建议，这是一个固定的程序

        string encrypt = ""; string decrypt = "";

        string input = Console.ReadLine();
        var length = input.Length;
        int[] converted = new int[length];
        for (int index = 0; index < length; index++)
        {
            int x = input[index];
            string s = x.ToString();
            encrypt += s;
            converted[index] = x;
        }

        Console.WriteLine(encrypt);
        for (int index = 0; index < converted.Length; index++)
        {
            char c = (char)converted[index];
            string s = c.ToString();
            decrypt += s;
        }
        Console.WriteLine(decrypt);