C语言实例55：打开和关闭文件

#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *fp;
    char ch, filename[10];

    printf("Pleas input the name of file:");
    scanf("%s", filename);

    if((fp = fopen(filename,"r")) == NULL)
    {
        printf("Cannot open the file.\n");
        exit(0);
    }

    fclose(fp);

    system("pause");
    return 0;
}