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        public static void CopyFile(string source, string destination)
        {
            if (string.IsNullOrEmpty(source) | string.IsNullOrEmpty(destination))
            {
                throw new ArgumentNullException("´«ÈëµÄĿ¼²»´æÔÚ");
            }
            if (IsDirectory(source))
            {
                if (IsDirectory(destination))
                {
                    var currentFiles = Directory.GetFiles(source);
                    if (currentFiles.Length > 0)
                    {
                        foreach (var sourceFile in currentFiles)
                        {
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 1.  rocksaw-1.0.0-src.tar.gz
 2.  vserv-tcpip-0.9.2-src.tar.gz
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 1.  build vserv-tcpip-0.9.2-src
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import re, urllib
url="http://dict.youdao.com/search?le=eng&q="
print ("input q to exit")
while 1:
word = raw_input(">>>")
if word=="q":
exit()
else:
word = word.replace(' ', '+')
url += word
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