Usage of cout<下次还敢Original2024-04-28 19:30:21366browse

In C, cout<

##Usage of cout<

Concept:

cout<

Usage:

Use cout<

cout << data << endl;

where:

• cout：Standard output object
• data：The data to be output can be a string, numerical value, variable or expression
• endl: Line break

Effect:

When using cout<

• Output data: Output the value of data to the standard output device.
• Line break: Wrap the line after the output data.

Example:

#include <iostream>

using namespace std;

int main() {
  cout << "Hello World!" << endl;  // 输出 "Hello World!" 再换行
  cout << 123 << endl;  // 输出数字 123 再换行
  return 0;
}</p>
<p>Output:<strong></strong></p>
<pre class="brush:php;toolbar:false">Hello World!
123

Notes:

endl is a newline character, and "\n" is also a newline character. They can both be used for line breaks, but endl is recommended because it is more portable.
• cout<

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