linux mysql 找不到

原因：缺少libmysqlclient-dev，
安裝：apt-get install libmysqlclient-dev

main.cpp

#include <iostream>
#include <mysql/mysql.h>
#include <stdlib.h>
using namespace std;

int main()
{
 

   MYSQLmysql;
    MYSQL_RES*result;
    MYSQL_ROWrow;

   mysql_init(&mysql);
   mysql_real_connect(&mysql, "127.0.0.1", "root","123456",
                     "mydb", 0, NULL, 0);
   mysql_query(&mysql, "select * from friends");
    result =mysql_store_result(&mysql);
    while ((row= mysql_fetch_row(result)))
    {
       cout<< row[0]<< " | "<< row[1]<< " | "<< row[2]<< " | "
          << row[3]<< " | "<< row[4]<< " | "<< row[5]<< " | "
          << endl;
    }
   mysql_free_result(result);
   mysql_close(&mysql);
   
    return0;
}

makefile

mydb:main.cpp
    g++ -o mydbmain.cpp -lmysqlclient -I/usr/include/mysql/ -L/usr/lib/mysql