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The meaning of cout in c language

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Release: 2024-04-29 20:48:13
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cout is used in C to output data from the program to the console. Its syntax is cout<, and then use cout << "content" to output the data.

The meaning of cout in c language

The meaning of cout in C

In the C programming language, cout is a predefined output stream Object that represents console output.

Purpose:

cout is used to output data from the program to the console or other output device. It allows developers to print information, results, or error messages at runtime.

Syntax:

<code class="cpp">cout << data;</code>
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Where:

  • cout is the output stream object
  • << is the insertion operation symbol, used to insert data into the output stream
  • data is the data to be output (can be a string, number, variable, etc.)

Usage:

To use cout, you need to include the header file . Then, you can output the data using:

<code class="cpp">#include <iostream>

using namespace std;

int main() {
  int age = 25;
  string name = "John Doe";

  cout << "Age: " << age << "\n";
  cout << "Name: " << name;

  return 0;
}</code>
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Output:

<code>Age: 25
Name: John Doe</code>
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