[C Language] Read a text file

[C Language] Read a text file



#include <stdio.h>

#include <stdlib.h>



void main(void)

{

    FILE *input;



    char string[80];



    input=fopen("serial_number.txt","rt");   // w --> write, t --> text

    if ( input==NULL )

    {

        printf("open file fail!\n");

        exit(0);

    }

    fscanf(input,"%s",string);

  

    printf("%s\n",string);

    fclose(input);

  

}

###########################
serial_number.txt
fa0c9726-8752-4282-80d4-6a0bcec41316

###########################



Reference :

• 
  第八章:檔案