C# 利用WinRAR (加密)压缩及解压缩 相关文件夹及文件

本次示例主要实现：
1.压缩文件夹及其下文件
2.压缩文件夹下文件
3.压缩文件夹及其下文件为rar 还是 zip
4.解压缩
5.加密压缩及解加密压缩
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示例代码如下：
protected void Button1_Click(object sender, EventArgs e)
    {
        string strtxtPath = "C:\\freezip\\free.txt";
        string strzipPath = "C:\\freezip\\free.zip";
        System.Diagnostics.Process Process1 = new System.Diagnostics.Process();
        Process1.StartInfo.FileName = "Winrar.exe";
        Process1.StartInfo.CreateNoWindow = true;

        //// 1
        ////压缩c:\freezip\free.txt(即文件夹及其下文件freezip\free.txt)
        ////到c:\freezip\free.rar
        //strzipPath = "C:\\freezip\\free";//默认压缩方式为 .rar
        //Process1.StartInfo.Arguments = " a -r " + strzipPath + " " + strtxtPath;

        //// 2
        ////压缩c:\freezip\free.txt(即文件夹及其下文件freezip\free.txt)
        ////到c:\freezip\free.rar
        //strzipPath = "C:\\freezip\\free";//设置压缩方式为 .zip
        //Process1.StartInfo.Arguments = " a -afzip " + strzipPath + " " + strtxtPath;

        //// 3
        ////压缩c:\freezip\free.txt(即文件夹及其下文件freezip\free.txt)
        ////到c:\freezip\free.zip  直接设定为free.zip
        //Process1.StartInfo.Arguments = " a -r "+strzipPath+" " + strtxtPath ;

        //// 4
        ////搬迁压缩c:\freezip\free.txt(即文件夹及其下文件freezip\free.txt)
        ////到c:\freezip\free.rar 压缩后 原文件将不存在
        //Process1.StartInfo.Arguments = " m " + strzipPath + " " + strtxtPath;

        //// 5
        ////压缩c:\freezip\下的free.txt(即文件free.txt)
        ////到c:\freezip\free.zip  直接设定为free.zip 只有文件 而没有文件夹
        //Process1.StartInfo.Arguments = " a -ep " + strzipPath + " " + strtxtPath;

        //// 6
        ////解压缩c:\freezip\free.rar
        ////到 c:\freezip\
        //strtxtPath = "c:\\freezip\\";
        //Process1.StartInfo.Arguments = " x " + strzipPath + " " + strtxtPath;

        //// 7
        ////加密压缩c:\freezip\free.txt(即文件夹及其下文件freezip\free.txt)
        ////到c:\freezip\free.zip  密码为123456 注意参数间不要空格
        //Process1.StartInfo.Arguments = " a -p123456 " + strzipPath + " " + strtxtPath;

        //// 8
        ////解压缩加密的c:\freezip\free.rar
        ////到 c:\freezip\   密码为123456 注意参数间不要空格
        //strtxtPath = "c:\\freezip\\";
        //Process1.StartInfo.Arguments = " x -p123456 " + strzipPath + " " + strtxtPath;

       //// 9 
       ////-o+ 覆盖 已经存在的文件
       //// -o- 不覆盖 已经存在的文件
       //strtxtPath = "c:\\freezip\\";
       //Process1.StartInfo.Arguments = " x -o+ " + strzipPath + " " + strtxtPath;

       ////10
       //// 只从指定的zip中
       //// 解压出free1.txt
       //// 到指定路径下
       //// 压缩包中的其他文件 不予解压
       //strtxtPath = "c:\\freezip\\";
       //Process1.StartInfo.Arguments = " x " + strzipPath + " " +" free1.txt" + " " + strtxtPath;

      //// 11
      //// 通过 -y 对所有询问回应为"是" 以便 即便发生错误 也不弹出WINRAR的窗口
      //// -cl 转换文件名为小写字母 
      //strtxtPath = "c:\\freezip\\";
      //Process1.StartInfo.Arguments = " t -y -cl " + strzipPath + " " + " free1.txt";

        Process1.Start();   
        if (Process1.HasExited)
        {
                int iExitCode = Process1.ExitCode;
                if (iExitCode == 0)
                {
                    Response.Write(iExitCode.ToString() + " 正常完成");
                }
                else
                {
                    Response.Write(iExitCode.ToString() + " 有错完成");
                }
        }
    }