摘要： 1 public static string Reverse(this String str) 2 { 3 char[] array = str.ToCharArray(); 4 int n = array.Length - 1; 5 for (int i = (n - 1) >> 1; i >= 0; i--) 6 { 7 int j = n - i; 8 char temp = array[i 阅读全文