c语言中使用程序读取文件。

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int ch;
    FILE * fp;
    char fname[50];
    
    printf("enter the name of the file: ");
    scanf("%s", fname);
    
    fp = fopen(fname, "r");
    if(fp == NULL)
    {
        printf("failed to open file.\n");
        exit(1);
    }
    
    while((ch = getc(fp)) != EOF)
        putchar(ch);
    fclose(fp);
    
    return 0;
}