fopen出问题了，怎么改啊

Question

fopen_s改成这个不行，说是实参太少fghhryijbvfcxddrtijbcxzsriokjvxdseghhb

Answer 1

供参考：

FILE* fp = null;
errno_t err = 0;
err = fopen_s(&fp,filename,"w+")
if(err==0)
{
   // 打开文件成功
}

题主代码修改如下，供参考：

#include <stdio.h>
#include <stdlib.h>
int main()
{
    FILE *fp1, *fp2;
    errno_t err = 0;
    err = fopen_s(&fp1, "filee.txt", "r");
    if (err){
        printf("\nerror:fail in opening cyfile!");
        exit(0);
    }
    err = fopen_s(&fp2, "copy.txt", "w+");
    if (err){
        printf("\nerror:fail in opening cyfile!");
        exit(0);
    }
    while ((c = fgetc(fp1)) != EOF)
    {
        fputc(c, fp2);
    }
    rewind(fp2);
    c  = fgetc(fp2);
    printf("%c\n", c);
    fclose(fp1);
    fclose(fp2);
    return 0;
}