C# 数组的合并拆分

/// <summary>    
/// 合并数组    
/// </summary>    
/// <param name="First">第一个数组</param>    
/// <param name="Second">第二个数组</param>    
/// <returns>合并后的数组(第一个数组+第二个数组，长度为两个数组的长度)</returns>    
public string[] MergerArray(string[] First, string[] Second)    
{    
    string[] result = new string[First.Length + Second.Length];    
    First.CopyTo(result, 0);    
    Second.CopyTo(result, First.Length);    
    return result;    
}    
   
/// <summary>    
/// 数组追加    
/// </summary>    
/// <param name="Source">原数组</param>    
/// <param name="str">字符串</param>    
/// <returns>合并后的数组(数组+字符串)</returns>    
public string[] MergerArray(string[] Source, string str)    
{    
    string[] result = new string[Source.Length + 1];    
    Source.CopyTo(result, 0);    
    result[Source.Length] = str;    
    return result;    
}    
   
/// <summary>    
/// 从数组中截取一部分成新的数组    
/// </summary>    
/// <param name="Source">原数组</param>    
/// <param name="StartIndex">原数组的起始位置</param>    
/// <param name="EndIndex">原数组的截止位置</param>    
/// <returns></returns>    
public string[] SplitArray(string[] Source, int StartIndex, int EndIndex)    
{    
    try   
    {    
        string[] result = new string[EndIndex - StartIndex+1];    
        for (int i = 0; i <= EndIndex - StartIndex; i++) result[i] = Source[i+StartIndex];    
        return result;    
    }    
    catch (IndexOutOfRangeException ex)    
    {    
        throw new Exception(ex.Message);    
    }    
}    
   
/// <summary>    
/// 不足长度的前面补空格,超出长度的前面部分去掉    
/// </summary>    
/// <param name="First">要处理的数组</param>    
/// <param name="byteLen">数组长度</param>    
/// <returns></returns>    
public string[] MergerArray(string[] First, int byteLen)    
{    
    string[] result;    
    if (First.Length > byteLen)    
    {    
        result = new string[byteLen];    
        for (int i = 0; i < byteLen; i++) result[i] = First[i + First.Length - byteLen];    
        return result;    
    }    
    else   
    {    
        result = new string[byteLen];    
        for (int i = 0; i < byteLen; i++) result[i] = " ";    
        First.CopyTo(result, byteLen-First.Length);    
        return result;    
    }    
}    
   
//调用    
string[] student1 = { "a", "b", "c", "d", "e", "f"};    
string[] student2 = { "0", "1", "2", "3", "4", "5", "6", "6", "1", "8", "16", "10", "45", "37", "82" };    
string student3 = "Test";    
//两个数组相加 结果--> { "a", "b", "c", "d", "e", "f","0", "1", "2", "3", "4", "5", "6", "6", "1", "8", "16", "10", "45", "37", "82" };    
string[] Merger1 = MergerArray(student1, student2);    
//数组+字符串  结果-->{ "a", "b", "c", "d", "e", "f","Test"};    
string[] Merger2 = MergerArray(student1, student3);    
//不足10位的，前面补空格 结果-->{" ", " ", " ", " ", "a", "b", "c", "d", "e", "f"};    
string[] Merger3 = MergerArray(student1, 10);    
//超过3位的，只取最后3后 结果-->{"d", "e", "f"};    
string[] Merger4 = MergerArray(student1, 3);    
//截取部分数组 结果-->{"c", "d", "e"};    
 string[] SplitArray1 = SplitArray(student1, 2, 4);