fwrite 换行

#include <stdio.h>
int main()
{
	FILE *pFile=NULL;
	int a=123;
	int b=456;
	int c=789;
	char *info=new char[4];
	pFile=fopen("test.txt","ab+");
	if (pFile)
	{
		//写入a
		sprintf(info,"%d",a);
		fwrite(info,1,3,pFile);
		////换行
		fwrite("\r\n",1,2,pFile);//注意此处 count=2
		//写入b
	    sprintf(info,"%d",b);
		fwrite(info,1,3,pFile);
		//换行
		fwrite("\r\n",1,2,pFile);
		//写入C
		sprintf(info,"%d",c);
		fwrite(info,1,3,pFile);
	}
	fclose(pFile);
	delete [] info;
	return 0;
}