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This article mainly introduces the "C language getchar () and putchar () function how to use" related knowledge, Xiaobian through the actual case to show you the operation process, the method of operation is simple and fast, practical, hope that this "C language getchar () and putchar () function how to use" the article can help you solve the problem.

Getchar () & putchar () function

The int getchar (void) function reads the next available character from the screen and returns it as an integer. This function only reads a single character at a time. You can use this method within a loop to read multiple characters from the screen.

The int putchar (int c) function outputs characters to the screen and returns the same characters. This function outputs only a single character at the same time. You can use this method within a loop to output multiple characters on the screen.

Look at the following example:

# include

Int main () {

Int c

Printf ("Enter a value:")

C = getchar ()

Printf ("\ nYou entered:")

Putchar (c)

Printf ("\ n")

Return 0

}

When the above code is compiled and executed, it waits for you to enter some text, and when you enter a text and press enter, the program continues and only reads a single character, as shown below:

$. / a.outEnter a value: runoobYou entered: r that's all about how to use the getchar () and putchar () functions of C language. Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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