C # console Base StreamReader and StreamWriter read content from one txt to another txt

1 Code

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.IO;4 usingSystem.Linq;5 usingSystem.Text;6 usingSystem.Threading.Tasks;7 8 namespaceConsoleApplication49 {Ten     class Program One     { A         Static voidMain (string[] args) -         { -             //1.txt Existence of the             using(StreamReader Sreader =NewStreamReader (@"1.txt", Encoding.default)) -             { -                 //2.txt does not exist, there is no new -                 using(StreamWriter Swriter =NewStreamWriter (@"2.txt")) +                 { -                      while(!Sreader.endofstream) +                     { A                         //if not to the end, I read a line to write a line at Swriter.writeline (Sreader.readline ()); -                     } -                 } -             } -Console.WriteLine ("OK"); - Console.readkey (); in         } -     } to}

2 Read txt

3 Console Effects

4 Write txt (new)

But there is a strange thing, the size of the two files is different

Is it a matter of encoding format?

C # console Base StreamReader and StreamWriter read content from one txt to another txt