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string str = "abcdefg";
ArrayList arr = new ArrayList();
for (int i = 0; i < str.Length; i++)
{
arr.Add(str.Substring(i, 1));
}
arr.Reverse();
foreach (string ar in arr)
{
Response.Write(ar);
}
string str = "abcdefgh";
char[] cs = str.ToCharArray();
char temp;
int len = cs.Length;
for (int i = 0; i < cs.Length / 2 ; i++)
{
temp = cs[i];
cs[i] = cs[len - 1 - i];
cs[len - 1 - i] = temp;
}
string res = new string(cs);
Console.WriteLine(res);
string str = "abcdefg";
StringBuilder sb = new StringBuilder();
char[] cs = str.ToCharArray();
for(int i = cs.Length-1;i > -1;i++)
{
sb.Append(cs[i]);
}
string res = sb.ToString();
string str = "abcdefg";
char[] cs = str.ToCharArray();
Array.Reverse(cs);
string res = new string(cs);
Console.WriteLine(res);