请问以下问题(见18行)怎样样解决(©应为叉加园)?改为fopen_s不行,显示出错。
© C4996 'fopen': This function or variable may be unsafe. Consider using fopen s instead. To disable deprecation, use CRT SECURE NO WARNINGS. See online help for details.
// _4CCTWO.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//
#include "pch.h"
#include <iostream>
#define N 5
typedef struct
{
int num;
char name[10];
char tel[10];
} STYPE;
void check();
/**********found**********/
int fun(STYPE *std)
{
/**********found**********/
FILE * fp; int i;
if ((fp = fopen("myfile5.dat", "wb"))== NULL)
return(0);
printf("\nOutput data to file!\n");
for (i = 0;i < N;i++)
/**********found**********/
fwrite(&std[i],sizeof(STYPE),1, fp);
fclose(fp);
return(1);
}
int main()
{
STYPE s[10] = { {1,"aaaaa","111111"},{1,"bbbbb","222222"},{1,"ccccc","333333"},{1,"ddddd","444444"},{1,"eeeee","555555"} };
int k;
k = fun(s);
if (k == 1)
{
printf("Succeed!"); check();
}
else
printf("Fail!");
}

还有第43句,亦如上,导至程序不能运行!
// _4CCTWO.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//
#include "pch.h"
#include <iostream>
#define N 5
typedef struct
{
int num;
char name[10];
char tel[10];
} STYPE;
void check();
/**********found**********/
int fun(STYPE *std)
{
/**********found**********/
FILE * fp; int i;
if ((fp = fopen("myfile5.dat", "wb")) == NULL)
return(0);
printf("\nOutput data to file!\n");
for (i = 0; i < N; i++)
/**********found**********/
fwrite(&std[i], sizeof(STYPE), 1, fp);
fclose(fp);
return(1);
}
int main()
{
STYPE s[10] = { {1,"aaaaa","111111"},{1,"bbbbb","222222"},{1,"ccccc","333333"},{1,"ddddd","444444"},{1,"eeeee","555555"} };
int k;
k = fun(s);
if (k == 1)
{
printf("Succeed!"); check();
}
else
printf("Fail!");
}
void check()
{
FILE *fp; int i;
STYPE s[10];
if ((fp = fopen(" myfile5. dat", "rb")) == NULL)
{
printf(" Fail! \n"); exit(0);
}
printf("\nRead file and output to screen : \n");
printf("\n num name tel\n");
for (i = 0; i < N; i++)
{
fread(&s[i], sizeof(STYPE), 1, fp);
printf("% 6d %s %s\n", s[i].num, s[i].name, s[i].tel);
}
fclose(fp);
}