What is /// in c#

Multi-line comments in C# start with the /// symbol and can span multiple lines and document the purpose of the code element. Such annotations are used for documentation purposes, generate XML documentation, and enhance code readability and maintainability, while also supporting IntelliSense in tools such as Visual Studio.

///: Multi-line comments in C

#In C#, the /// symbol represents multiple Line comments, which allow you to write comments that span multiple lines. Such comments are useful for documenting the purpose of classes, methods, and other code elements.

Usage:

To write a multi-line comment, use three slashes (///) at the beginning of the comment, and then repeat two slashes at the beginning of each line. A slash (//):

<code class="csharp">/// <summary>
/// 计算两个数字的和。
/// </summary>
/// <param name="a">第一个数字。</param>
/// <param name="b">第二个数字。</param>
/// <returns>两个数字的和。</returns>
int Sum(int a, int b) {
    // 这里添加代码...
}</code>

Purpose:

• Record purpose: Multi-line comments are used to describe the purpose of the class , the behavior of methods, and the role of other code elements.
• XML Documentation: Multiline comments can contain an XML document that provides IntelliSense information to Visual Studio and other tools. For example, the above example will generate the following IntelliSense document:

<code class="xml">/// <summary>
/// 计算两个数字的和。
/// </summary>
/// <param name="a">第一个数字。</param>
/// <param name="b">第二个数字。</param>
/// <returns>两个数字的和。</returns>
public int Sum(int a, int b);</code>

Advantages:

• High legibility: Multiple Line comments make code easier to read and understand.
• High maintainability: Comments help maintain the code in the future because they record the functionality and limitations of the code.
• IntelliSense Support: XML documentation comments allow tools like Visual Studio to provide IntelliSense hints.

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