//用格式化(fprintf和fscanf函数)的方式读写文件
【用格式化的方式向文件中写入数据】
#include<stdio.h>
#include<stdlib.h>
int main()
{
int i=12,f=3;
FILE *fp;
if((fp=fopen("f:\FILE_1\file_4.txt","w"))==NULL)
{
printf("can't open file
");
exit(0);
}
fprintf(fp,"%d,%d",i,f);
fclose(fp);
printf("
");
return 0;
}
【用格式化的方式从文件中读入数据】
#include<stdio.h>
#include<stdlib.h>
int main()
{
int i=12,f=3;
FILE *fp;
if((fp=fopen("f:\FILE_1\file_4.txt","w"))==NULL)
{
printf("can't open file
");
exit(0);
}
//fprintf(fp,"%d,%d",i,f);
fscanf(fp,"%d,%d",i,f);
//把读到的数据显示在屏幕上
printf("%d,%d",i,f);
fclose(fp);
printf("
");
return 0;
}