linux环境下写C++操作mysql（一）

/*****************
connect.cpp
g++ connect.cpp -o connect -I /usr/include/mysql/ -L /usr/lib/mysql/ -lmysqlclient
****************/

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include"mysql.h"


class CMysqlInterface
{
    public:
        CMysqlInterface();
        ~CMysqlInterface();
        
        void mysqlLibInit();
        void mysqlLibDestroy();
        int Connect();
        int Close();

    private:
        MYSQL *m_mysqlPtr;
};

int main()
{
    printf("version 1.1n");
    int iRet = -1;
    CMysqlInterface MysqlObj;
    
    iRet = MysqlObj.Connect();
    if(0 == iRet)
    {
        printf("mysql_real_connect successn");
    }
    else
    {
        printf("mysql_real_connect failedn");
    }
    return 0;
}

CMysqlInterface::CMysqlInterface()
{
    printf("CMysqlInterfacen");
    m_mysqlPtr = NULL;
    m_mysqlPtr = mysql_init(NULL);
}

CMysqlInterface::~CMysqlInterface()
{
    Close();

}

int CMysqlInterface::Close()
{
    int iRet = 0;
    
    if(NULL != m_mysqlPtr)
    {
        mysql_close(m_mysqlPtr);
        m_mysqlPtr = NULL;
    }
    return iRet;
}

void CMysqlInterface::mysqlLibDestroy()
{
    mysql_library_end();
}

int CMysqlInterface::Connect()
{    
    printf("Connectn");
    int iRet = -1;
    m_mysqlPtr = mysql_real_connect(m_mysqlPtr,"localhost","root","csql","child",0,NULL,0);
    if(m_mysqlPtr)
    {
        iRet = 0;
    }
    return iRet;
}