C Tutorial/Data Type/char read
Содержание
All letters of the alphabet, symbols, and number keys on the keyboard have ASCII codes
ASCII code values range from 0 to 127.
#include <stdio.h>
int main()
{
char key;
printf("Press a key on your keyboard:");
key=getchar();
printf("You pressed the "%c" key.\n",key);
printf("Its ASCII value is %d.\n",key);
return(0);
}Press a key on your keyboard:1
You pressed the "1" key.
Its ASCII value is 49.
Reading and Writing Single Characters: scanf(%c,&key)
#include <stdio.h>
int main()
{
char key;
puts("Type your favorite keyboard character:");
scanf("%c",&key);
printf("Your favorite character is %c!\n",key);
return(0);
}Type your favorite keyboard character:
1
Your favorite character is 1!
Reading characters and strings
#include <stdio.h>
int main()
{
char x;
char y[ 9 ];
printf( "Enter a string: " );
scanf( "%c%s", &x, y );
printf( "The input was:\n" );
printf( "the character \"%c\" ", x );
printf( "and the string \"%s\"\n", y );
return 0;
}Enter a string: string The input was: the character "s" and the string "tring"
The getchar() function
The getchar() function is used to read a single character from the keyboard.
#include <stdio.h>
int main(){
char key;
puts("Type your favorite keyboard character:");
key=getchar();
printf("Your favorite character is %c!\n",key);
return(0);
}Type your favorite keyboard character:
1
Your favorite character is 1!
