learn c #

I / O file in C #
a file is a collection of data stored on the drive with a specific name and a directory path. when a file is opened for reading or writing, it becomes a stream.
Installing C # environment
in this chapter, we will introduce the tools needed to install the c # environment. we mentioned that c # is part of the .net framework and is used to write .net applications. therefore, before discussing the tools available to run a c # program, you should understand how c # relates to the .net