什么是mysql c api？ 解析mysql c api簡單應用

#include?<stdio.h>  #include?<stdlib.h>  #include?"mysql.h"  int?insert_new_table(MYSQL?*sock1,const?char?*row1,const?char?*row2)  {  	char?buf[128];  	sprintf(buf,"insert?into?aaa.tmp?(num,name)?VALUES(%s,'%s')",row1,row2);  	mysql_query(sock1,buf);  	printf("----n");  ????return?0;  }      int?main(int?argc,char?**argv)  {  ????????MYSQL?mysql,*sock;  ????????MYSQL_RES?*res;  	MYSQL_FIELD?*fd;  	MYSQL_ROW?row;  	char?qbuf[160];    	//init?mysql  ????????mysql_init(&amp;mysql);  	sock?=?mysql_real_connect(&amp;mysql,"localhost","root","root","tmp",0,NULL,0);  	if(sock?==?0)  	{  	????fprintf(stderr,"connect?mysql?db?%sn",mysql_error(&amp;mysql));  ????????exit(1);  	}	  	sprintf(qbuf,"select?id,username,groupname?from?usergroup;");  	  	if(mysql_query(sock,qbuf)){  	?????fprintf(stderr,"query?error?%sn",mysql_error(sock));  ?????????exit(1);  	?}  	?  	?if(!(res?=?mysql_store_result(sock)))  	?{  	?????exit(1);  	?}  ?????????printf("number?of?fields?returned?:%dn",mysql_num_fields(res));  	?int?i=0;  	?while((row?=?mysql_fetch_row(res))?!=?NULL)  	?{  	?????printf("%s,%s,%sn",row[i],row[i+1],row[i+2]);  //???????????insert_new_table(sock,row[i],row[i+1]);???????//insert  	?}  	?mysql_free_result(res);  	?mysql_close(sock);  	?return?0;  }</stdlib.h></stdio.h>