What does \n mean in c++

\n in C is the newline character, used to force a newline in text output. It can be used with the \n escape character or inline with std::endl, both of which wrap text to a new line.

What is \n in C

?

In C, \n represents a newline character.

Use

\n Mainly used to force line breaks in text output.

Usage

When using \n in a string, you need to use the escape character \ to escape, for example:

std::cout << "第一行" << std::endl;
std::cout << "第二行" << std::endl;

or use Inline std::endl:

std::cout << "第一行" << std::endl;
std::cout << "第二行" << std::endl;

Both methods wrap the output text to a new line.

Example

The following code example demonstrates the use of \n:

#include <iostream>

int main() {
  std::cout << "第一行\n";
  std::cout << "第二行";
  return 0;
}

Output

<code>第一行
第二行</code>

Note

• \n Only valid in text output, not binary files.
• On Windows systems, \n is converted to \r\n because Windows systems use different newline conventions.

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