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server.cpp
clientp2p.cpp
#include "exception.h"
#include "clientp2p.h"
clientp2p.h
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#include "clientp2p.h"
int Main(....)
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...
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#include
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....
3. file_2.cpp
#include "global.h"
...
 
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clientp2p.o:(.bss+0x0): multiple definition of `ClientList'
server.o:(.bss+0x0): first defined here
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Èç extern int flag;
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#ifndef  GLOBAL
#define GLOBAL
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ÔÚlinuxϱàÒëc++ ³ÌÐòҪʹÓÃg++ ±àÒëÆ÷,Èç¹ûÄãÒªÊÇʹÓÃgcc±àÒëÆ÷¾Í»áÓÐÉÏÃæµÄ±¨´íÐÅÏ¢,Ö»ÒªÔÚÔÚgccºó¼ÓÉÏ -lstdc++¾ÍokÁË
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#include <sys/types.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int main(){
int sockfd;
int len;
struct sockaddr_in address;
int result;
char *strings="GET /svnup/rewrite.php HTTP/1 ......

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#include<reg52.h>
#define uchar unsigned char
 uchar code table[]={0xC0,0xF9,0xA4,0xB0,0x99,
    0x92,0x82,0xF8,0x80,0x90,
    0x88,0x83,0xC6,0xA1,0x86,0x8E};
uchar temp,num;
void display(uchar);
void delay(uchar a)
{
  ......

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enum {false,true};
int main()
{
int i=1;
do
{
printf("%d\n",i);
i++;
if(i < 15)
continue;
}while(false);
return 0;
}
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CÓïÑÔÁ¬½ÓmysqlÊý¾Ý¿â£¬¶ÁÈ¡mysqlÄÚÈÝ

 //linuxϱàÒëg++ $(mysql_config --cflags)  ***.cpp  $(mysql_config --libs)
/*mysqlÊý¾Ý¿âÖбíµÄÄÚÈÝ
mysql> select * from maindb;
+------------------+---------+-------------+---------+----------+---------------------+---------------------+---------------------+------------------- ......
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