create database test;
use test;
create table test_1(name varchar(128),age int);
insert into test_1 values('獜洛橙',18);

#include <stdio.h>
#include <WinSock.h>
#include <Windows.h>
#include <mysql.h>
#include<iostream>
using namespace std;
 
MYSQL mysql;  //mysql連接
MYSQL_RES* res; //一個結果集結構體   
MYSQL_ROW row; //char** 二維數(shù)組，存放一條條記錄  
 
const char DataBase_UserName[] = "root";    //數(shù)據(jù)庫用戶名username
const char DataBase_Password[] = "123456";   //數(shù)據(jù)庫密碼，填自己的密碼
const char DataBase_Host[] = "localhost";  //數(shù)據(jù)庫連接地址
//注意有時候使用主機ip會報錯，此時可以將ip改為localhost
const char DataBase_Name[] = "test";  //database name
unsigned int DataBase_Port = 3306;            //server port
 
bool ConnectDatabase(); //函數(shù)申明
void FreeConnect();   //釋放資源
 
wchar_t* Utf8_2_Unicode(char* row_i)
{
	int len = MultiByteToWideChar(CP_UTF8, 0, row_i, strlen(row_i), NULL, 0);
	wchar_t* wszStr = new wchar_t[len + 1];
	MultiByteToWideChar(CP_UTF8, 0, row_i, strlen(row_i), wszStr, len);
	wszStr[len] = '\0';
	return wszStr;
}
 
void main()
{
	setlocale(LC_ALL, "chs");
	ConnectDatabase();	//連接數(shù)據(jù)庫
	//查詢數(shù)據(jù)
	mysql_query(&mysql, "SELECT * from test_1");
	//獲取結果集
	res = mysql_store_result(&mysql);
	//顯示數(shù)據(jù)
	//給ROW賦值，判斷ROW是否為空，不為空就打印數(shù)據(jù)。
	while (row = mysql_fetch_row(res))
	{
		wchar_t* m1 = Utf8_2_Unicode(row[0]);
		wchar_t* m2 = Utf8_2_Unicode(row[1]);
		wprintf_s(L"%s  %s", m1,m2);
	}
	FreeConnect();
	getchar();
}
 
 
bool ConnectDatabase()
{
	//初始化mysql
	mysql_init(&mysql);   //連接mysql，數(shù)據(jù)庫
	//中間分別是主機，用戶名，密碼，數(shù)據(jù)庫名，端口號（可以寫默認0或者3306等），可以先寫成參數(shù)再傳進去
	if (!(mysql_real_connect(&mysql, DataBase_Host, DataBase_UserName, DataBase_Password, DataBase_Name, DataBase_Port, NULL, 0))) {
		printf("Error connecting to database:%s\n", mysql_error(&mysql));
		return false;
	}
	else {
		MessageBoxA(NULL, "連接MYSQL數(shù)據(jù)成功！", "消息", MB_OK);
		printf("Connected...\n");
		return true;
	}
}
//釋放資源
void FreeConnect() {
	mysql_close(&mysql);
}