What does /n mean in C++ and what is its function

Newline character\nIn C, \n is a newline character, used to create a new line in the output. Its uses include: outputting multi-line text to control newline file reading and writing

Newline character in C:\n

In C, \n is an escape sequence, indicating a newline symbol. What it does is move the cursor to the next line, starting a new line.

Usage:

\n Mainly used to create new lines in text output. Here are some of its common uses:

• Output multi-line text: Use \n to split text into multiple lines to make the output clearer and easier to read. .
• Control newline: Force the cursor to start on a new line, thereby controlling the formatting of the output.
• File reading and writing: In file reading and writing operations, \n can be used to represent line terminators.

Example:

<code class="cpp">// 输出多行文本
cout << "第一行" << endl;
cout << "第二行" << endl;

// 控制换行
cout << "第一行" << "\n";
cout << "第二行" << "\n";

// 文件读写
ofstream file;
file.open("test.txt");
file << "第一行" << endl;
file << "第二行" << endl;
file.close();</code>

Note:

Different operating systems may use different line breaks. In Windows, \n represents a carriage return (CR), while in Linux and macOS, \n represents a line feed (LF). However, C's endl stream caret will automatically insert the correct newline on all platforms.

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