MySQL_C操作

// need a instance to init 
MYSQL mysql;
char *query; 
int t; 

// connect the database  
mysql_init(&mysql); 
if (!mysql_real_connect(&mysql, "localhost", "", "", "test", 0, NULL, 0)) 
{ 
printf( "Error connecting to database: %s\n",mysql_error(&mysql)); 
} 
else printf("Connected...\n"); 

// get the result from the executing select query 
query = "select * from t1"; 

t = mysql_real_query(&mysql,query,(unsigned int) strlen(query)); 
if (t) 
{ 
printf("Error making query: %s\n", 
mysql_error(&mysql)); 
} 
else printf("[%s] made...\n", query);  
MYSQL_RES *res = mysql_store_result(&mysql);
MYSQL_ROW row; 
while(row = mysql_fetch_row(res)) 
{ 
for(t=0;t<mysql_num_fields(res);t++) 
{ 
printf("%s ",row[t]); 
} 
printf("\n"); 
} 

printf("mysql_free_result...\n"); 
mysql_free_result(res);     //free result after you get the result 

// execute the insert query 
query = "insert into t1(id, name) values(3, 'kunp')"; 
t = mysql_real_query(&mysql,query,(unsigned int) strlen(query)); 
if (t) 
{ 
printf("Error making query: %s\n", 
mysql_error(&mysql)); 
} 
else printf("[%s] made...\n", query);  

mysql_close(&mysql);