方法一：
public static string Reverse(string name) { if (String.IsNullOrEmpty(name)) { throw new Exception("字符串不能为空！"); } StringBuilder sb = new StringBuilder(name.Length); for (int i = name.Length-1; i >= 0; i--) { sb.Append(name[i]); } return sb.ToString(); }
方法二：.NET3.5以上
public static string Reverse(string name) { char[] reverse = name.Reverse().ToArray();
return new string(reverse); }
方法三：二分法
public static string Reverse(string name) { if (String.IsNullOrEmpty(name)) { throw new Exception("字符串不能为空！"); } char[] nm = name.ToCharArray(); for (int i = 0; i < (nm.Length-1 )/ 2; i++) { char q = nm[i]; nm[i]= nm[nm.Length - 1 - i]; nm[nm.Length - 1 - i] = q; }
return new string(nm);
}
转载于:https://www.cnblogs.com/Connaughtyu/p/9448157.html
