why "/" instead of "\"?

Question

I was making a practice program and when I wrote:
bool txt = File.Exists(C:\text.txt");

it says "unrecognized escape secuence"

but when I write:
bool txt = File.Exists(C:/text.txt)

it does recognize it.

is there a config problem with my PC?

Answer 1

You're using escape-sequence feature (\ starts escape sequence; \n and \r mean new line symbol, \t means tab symbol and so on).
In your case you can write:
bool txt = File.Exists("C:\\text.txt") // escape sequence for \ symbol
Or
bool txt = File.Exists(@"C:\text.txt") // ignores escape sequences

Answer 2

wow. thanks!!!

Answer 3

thans man!! I'll try it right now!

Answer 4

this helped me, thanks @Ivan G