Stream stream = File.Open(filename, FileMode.Open);
如何得到这个.rar文件的类型呢?
应该先获取一个FileInfo对象,然后调用它的Extension属性,就可以获取扩展名了。如:
Codestring path = @"c:\test.txt"; FileInfo fi = new FileInfo(path);Stream stream = fi.Open(FileMode.Open);string extension = fi.Extension;