//创建表

-(void)createTable

{

//准备sql语句

NSString *createTablesql = @"CREATE TABLE IF NOT EXISTS 'student' ('number' INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL UNIQUE,'name' TEXT NOT NULL,'age' INTEGER NOT NULL,'gender' TEXT NOT NULL DEFAULT male)";

//c语言里的函数sqlite3_exec,为什么用NULL不用nil，因为nil属于OC，NULL属于c

int result = sqlite3_exec(db,createTablesql.UTF8String,NULL,NULL);

if (sqlITE_OK == result) {

NSLog(@"成功");

}else

{

NSLog(@"失败");

}

}