mysql.h文件在哪，怎么查找。自行百度
#include <mysql>
#include <stdio>
#include<iostream>
#include<fstream>
#include<string>
using namespace std;
MYSQL *conn;
MYSQL_RES *res;
MYSQL_ROW row;
class people
{
public:
char name[20];
int pid;
int type;
char phone[30];
public:
people(int a){};
