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/// <summary>
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/// 翻转字符串中的单词
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/// ex.
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/// I am chinese. -> I ma esenihc.
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/// </summary>
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/// <param name="strInput"></param>
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/// <returns></returns>
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static string ReverseWordInString(string strInput)
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{
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string strMeta = ". "; //不用反的 标点符号
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StringBuilder strReturn = new StringBuilder();
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Stack<char> stack = new Stack<char>();
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foreach (char c in strInput)
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{
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if (strMeta.IndexOf(c) != -1)
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{
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while (stack.Count > 0)
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{
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strReturn.Append((char)stack.Pop());
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}
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strReturn.Append(c);
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}
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else
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stack.Push(c);
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}
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return strReturn.ToString();
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}
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