C #: string type

1. string is a reference type, but it differs from the reference type in common operations:

If you modify one of the strings, A New String object is created, and the other string is not changed.

Using system;

Namespace consoleapplication2

{

Classprogram

{

Staticvoid main (string [] ARGs)

{

String S1 = "a string ";

String S2 = S1;

Console. writeline ("S1 is:" + S1 );

Console. writeline ("S2 is:" + S2 );

S1 = "New String ";

Console. writeline ("S1 now is:" + S1 );

Console. writeline ("S2 now is:" + S2 );

Console. Readline ();

}

}

}

The output result is:

S1 is: a string

S2 is: a string

S1 now is: New String

S2 now is: a string

 

2. escape characters in the string:

String filepath = "C: \ User \ public ";

String filepath = @ "C: \ User \ public ";