getback.c

里面包含很多c语言的源码

/* Demonstrates using the gets() return value. */

#include <stdio.h>

/* Declare a character array to hold input, and a pointer. */

char input[257], *ptr;

int main( void )
{
    /* Display instructions. */

    puts("Enter text a line at a time, then press Enter.");
    puts("Enter a blank line when done.");

    /* Loop as long as input is not a blank line. */

    while ( *(ptr = gets(input)) != NULL)
        printf("You entered %s\n", input);

    puts("Thank you and good-bye\n");

    return 0;
}