停止前循环 [英] stoping forecahloop

问题描述

string[] drives = Directory.GetLogicalDrives();
            foreach (string str in drives)
            {
                int i = 0;
                string[] driv = Directory.GetDirectories(str);
              string s1 = str + "WINDOWS";//C:\Documents and Settings  WINDOWS
              //  string s1 = str + "XMLFile1.xml";
                foreach (string str1 in driv)
                {
                    if (str1.ToLower() == s1.ToLower())
                    {

这是我的问题，当驱动器为只读(cd rom或dvd rom)时，异常将引发，我想避免该驱动器该怎么办，请帮帮我

here my problem is when the drive is readonly(cd rom or dvd rom) that the exception will raising i want avoid that drives how can i do it please help me

推荐答案

您可以在Directory.GetDirectories调用周围使用try/catch.看来您正在尝试获取Windows文件夹，该文件夹可以通过以下更整洁的方式完成:

you could use try/catch around the Directory.GetDirectories call. It looks like you are trying to get the windows folder which can be done in a much neater way like this:

string windowsFolder = Environment.GetFolderPath(Environment.SpecialFolder.Windows);

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