C # output a string with a linefeed

C # output a string with a line break, for example, "Hello World, \ n C #". The output results are different when output to the console and to a text file.

When the above string is output to the console, it appears: Hello World,

C #

But when output to a file, it appears: Hello World, [] C #. "\ N" is not a line break. At that time, I was puzzled. Later I checked the information and realized that the line feed was only possible after I changed the string to Hello World, \ r \ n C. After the test, the correct result is displayed: Hello World,

C #