#include "stdafx.h"
#include
#include
#include
#include
#include
using namespace std;
#pragma warning(disable:4996)
void WriteTXTFile_C()
{
FILE * fp = fopen("c.txt","wt");
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
fputc('C',fp);
fputs("Hello world!n",fp);
}
}
fclose(fp);
}
void ReadTXTFile_C()
{
FILE* fp = fopen("c.txt","rt");
char str[15];
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
fgetc(fp);
fgets(str,15,fp);
}
}
fclose(fp);
}
void WriteBINFile_C()
{
FILE* fp = fopen("d.bin","wb");
const char* str = "CHello,worldn";
int len = strlen(str);
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
fwrite(str,1,len,fp);
}
}
fclose(fp);
}
void ReadBINFile_C()
{
FILE* fp = fopen("d.bin","rb");
char str[16];
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
fread(str,16,fp);
}
}
fclose(fp);
}
void WriteTXTFile_CPlus()
{
fstream file;
file.open("cp.txt",ios::in | ios::out | ios::trunc);//注意ios::in，或者ios::in | ios::out两种方式在文件不存在时会执行写操作但不会建立文件。
for(int i=0;i<1000;i++)
{
for (int j = 0; j < 1000; j++)
{
file.put('C');
file << "Hello,worldn";
}
}
file.close();
}
void ReadTXTFile_CPlus()
{
fstream file;
file.open("cp.txt",ios::in|ios::out);
char str[15];
for (int i = 0; i < 1000; i++)
{
for(int j=0;j<1000;j++)
{
file.get(str,15);
}
}
file.close();
}
void WriteBINFile_CPlus()
{
fstream file;
file.open("cp.bin",ios::in | ios::out | ios::trunc | ios::binary);
const char* str = "CHello world!n";
int len = strlen(str);
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
file.write(str,len);
}
}
file.close();
}
void ReadBINFile_CPlus()
{
fstream file;
file.open("d.bin",ios::in | ios::out | ios::binary);
char str[16];
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
file.read(str,16);
}
}
file.close();
}
