1. 以二进制方式读写结构体
struct Student
{
string name;
string sex;
int age;
}
void write(string filePath, const struct Student* stu, int n)
{
FILE *fp;
int i;
if((fp=fopen(filePath,"wb"))==NULL)
{
printf("cant open the file");
return;
}
for(i=0;i<n;i++)
{
if(fwrite(&stu[i],sizeof(struct Student),1,fp)!=1)
printf("file write error\n");
}
fclose(fp);
}
void read(string filePath, const struct Student* stu, int n)
{
FILE *fp;
int i;
if((fp=fopen(filePath,"rb"))==NULL)
{
printf("cant open the file");
return;
}
for(i=0;i<n;i++)
{
if(fread(&stu[i],sizeof(struct Student),1,fp)!=1)
printf("file read error\n");
}
fclose(fp);
}
