【原创】(C#)字符串倒序的5种方法作者:神游 日期:2009-08-27
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奇猫居-神游天地间 c# 实现字符串倒序的n 种写法 最简洁就是linq的写法,推荐 方法一、 // string concatenation with for loop public string ReverseA(string text) { char[] cArray = text.ToCharArray(); string reverse = String.Empty; for (int i = cArray.Length - 1; i > -1; i--) { reverse += cArray[i]; } return reverse; } 方法二、 // Array.Reverse function public string ReverseB(string text) { char[] charArray = text.ToCharArray(); Array.Reverse(charArray); return new string(charArray); } 方法三、 // push/pop Stack<> public string ReverseC(string text) { Stack resultStack = new Stack(); foreach (char c in text) { resultStack.Push(c); } StringBuilder sb = new StringBuilder(); while (resultStack.Count > 0) { sb.Append(resultStack.Pop()); } return sb.ToString(); } 方法四、 // LINQ public string ReverseD(string text) { return new string(text.ToCharArray().Reverse().ToArray()); } 方法五、 // StringBuilder public string ReverseE(string text) { char[] cArray = text.ToCharArray(); StringBuilder reverse = new StringBuilder(); for (int i = cArray.Length - 1; i > -1; i--) { reverse.Append(cArray[i]); } return reverse.ToString(); } |
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