C#------IO练习

class Program
{
//练习一：将1.txt的文件字节与2.txt文件文件字节合并为一个文件3.txt。
static void Main(string[] args)
{
using( Stream fs1 = File.OpenRead(@"C:\Users\Administrator\Desktop\C#OOP练习\1.txt") )
using(Stream fs2 = File.OpenRead(@"C:\Users\Administrator\Desktop\C#OOP练习\2.txt") )
using (Stream OutStream = File.OpenWrite(@"C:\Users\Administrator\Desktop\C#OOP练习\3.txt"))
{
fs1.CopyTo(OutStream);
fs2.CopyTo(OutStream);
}

}
}