How do you use cout in the C language?

In C language, there is no keyword “cout”. “cout” is an output stream object in C++, used to output data to the console.

In C programming language, you can achieve similar functionality using the printf function. The printf function is used to format output data to the console.

For example, to print an integer to the console, you can use the following code:

int num = 10;
printf("The number is %d\n", num);

The output result is:

The number is 10

“%d” is a placeholder for formatted output, indicating that an integer will be output. Different placeholders can be used for outputting different types of data as needed. More information on the use of the printf function can be found in tutorials related to the C language.