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3个自定义C#字符串(string)倒序函数

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// 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;
}

// Array.Reverse function
public string ReverseB(string text)
{
    char[] charArray = text.ToCharArray();
    Array.Reverse(charArray);
    return new string(charArray);
}

// 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();
}

// LINQ
public string ReverseD(string text)
{
    return new string(text.ToCharArray().Reverse().ToArray());
}

// 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();
}

标签:倒序,string,C#

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