The role of \n in c++

\n in C represents a newline character, which causes the compiler to move the output cursor to the beginning of the next line, thus forming a new line. Its functions include: creating new lines, formatting output, and controlling output flow.

The role of \n in C

In C language, the escape character \n represents a newline character. It causes the compiler to move the output cursor to the beginning of the next line, thus creating a new line.

Usage

To insert a newline character, you can use the \n character in the string. For example:

<code class="cpp">std::cout << "Hello" << std::endl;</code>

The above code will output:

<code>Hello</code>

Function

\n The escape character has the following effect:

• Create new line: It moves the output cursor to the beginning of the next line, creating a new line in the output.
• Formatted Output: It can be used to split the output into multiple lines, making it easier to read and understand.
• Control the output stream: It can be used with std::endl or std::flush to force the output buffer to be flushed.

Examples

Here are some examples of using the \n escape character:

• Newline:

<code class="cpp">std::cout << "Line 1" << std::endl;
std::cout << "Line 2" << std::endl;</code>

• Align output:

<code class="cpp">std::cout << "Item 1: " << std::left << std::setw(10) << 10 << std::endl;
std::cout << "Item 2: " << std::left << std::setw(10) << 20 << std::endl;</code>

• Force refresh:

<code class="cpp">std::cout << "This will be flushed immediately" << std::flush;</code>

The above is the detailed content of The role of \n in c++. For more information, please follow other related articles on the PHP Chinese website!