What does /* mean in c++

In C, "/" and "/" are multi-line comment symbols, used to comment out blocks of code so that they will not be executed by the compiler. Specific usage includes: /* Mark the beginning of the comment. */ Marks the end of the comment. The content of the comment can be multiple lines of text and does not need to end with a semicolon (;).

##The meaning of / and / in C

In C,

/* and */ are multi-line comment symbols.

Purpose:

Comment out the code block so that it will not be executed by the compiler.
• Write comments to explain the function of the code, algorithm or other relevant information.

Usage:

• /* Marks the beginning of the comment.
• */ Marks the end of the comment.
The content of the comment can be multiple lines of text and does not need to end with a semicolon (
• ;).

Example:

<code class="cpp">// 使用单行注释
int main() {
  // 这是一条单行注释
  return 0;
}

/*
使用多行注释
*/
int main() {
  /*
  这是一个多行注释
  它跨越了多行
  */
  return 0;
}</code>

Note:

Comments will not be processed by the compiler, Therefore, it will not affect the operation of the program.
• Comments can be nested, but the number of nesting levels must not exceed 64.
• The closing symbol (
• */) of a nested comment must be on the same line or at the same level of nesting as the opening symbol (/*). Otherwise, the compiler will generate an error.

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