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#include<fstream>
#include <iostream>
using namespace std;
int main()
{
ofstream logTest("foo.log");
streambuf *oldbuf = cout.rdbuf(logTest.rdbuf());
cout << "Êä³öµ½±ê×¼Êä³ö£¬µ«Êµ¼ÊÊä³öµ½ÁËfoo.logÎļþÖÐ\n";
logTest << "Êä³öµ½Îļþ£¬ËäÈ»½«coutÖØ¶¨Ïòµ½ÁËlog£¬µ«²»Ó°Ïìlog±¾ÉíµÄʹÓÃ\n";
// »Ö¸´Á÷»º³åÇø
cout.rdbuf(oldbuf);
cout << "Êä³öµ½±ê×¼Êä³ö\n";
getchar();
}
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#include <ios>
#include <iostream>
#include <fstream>
//ÈôʹÓðüº¬.hÎļþ·½Ê½Ôò±àÒ뱨´í
using namespace std;
void main()
{
ofstream ofs("e:\\a.txt");
streambuf *osb = cout.rdbuf(ofs.rdbuf());
cout << "to file" << endl;
cout.rdbuf(osb);
cout << "to term" << endl;
}
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#include <stdio.h>
#include <string.h>
void main()
{
FILE old_stdout;
FILE *fp = fopen("e:\\a.txt", "w");
memcpy(&old_stdout, &_iob[1], sizeof(FILE));
memcpy(&_iob[1], fp, sizeof(FILE));
/*call any functions..*/
printf("to file");
/**/
/*°Ñ»º³åˢе½Îļþ*/
fflush(stdout);
memcpy(&_iob[1], &old_st
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#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar num;
void main()
{
TMOD=0x01;
TH0=(65536-45872)/256;
TL0=(65536-45872)%256;
EA=1;
ET0=1;
TR0=1;
P1=0xFF;
while(1);
}
void T0_time() interrupt 1
{
  ......
[root@localhost test]# hexdump -s 0 -n 52 -C helloworld
00000000 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 |.ELF............|
00000010 02 00 03 00 01 00 00 00 10 83 04 08 34 00 00 00 |............4...|
00000020 30 08 00 00 00 00 00 00 34 00 20 ......
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