创建表
$sql = "
create table talk_1 (
id int(11) not null auto_increment primary key,
picUrl varchar(255) ,
talkString varchar(255)
)
";
删除表
DROP TABLE talk_1
插入一行
INSERT INTO talk_1(talkString) VALUES ("呵呵，我是测试的")
删除一行
$sql="DELETE FROM talk_1 WHERE id = '$id'";
删除表中数据
$sql="Delete from tablename where 1=1";
