SQLite初试

1.创建一个名为test的数据库

2.添加一张学生表，表里面每一条记录包括学好，姓名，分数3个字段

工程－Build Phases-Link Binary With Libraries------libsqlite3.tbd

建立桥接文件

#import <sqlite3.h>

import UIKit

class ViewController: UIViewController {

lazy var documentsPath:String={

let paths=NSSearchPathForDirectoriesInDomains(.DocumentDirectory,.UserDomainMask,true)

return paths.first!

}()

var db:COpaquePointer=nil

override func viewDidLoad() {

super.viewDidLoad()

createOrOpenDatabase()

createTable()

}

}

extension ViewController{

//创建或打开数据库

func createOrOpenDatabase(){

print("\(NSHomeDirectory())")

let path:NSString = "\(documentsPath)/test.sqlite3"

let filename=path.UTF8String

if sqlite3_open(filename,&db) != SQLITE_OK {

print("create or open failed.......")

sqlite3_close(db)

}

}

//创建学生表

func createTable(){

let string:NSString = "create table if not exists Student(id integer primary key autoincrement,sno text,name text,score,integer)"

let sql = string.UTF8String

if sqlite3_exec(db,sql,nil,nil,nil) != SQLITE_OK{

print("create table failed......")

sqlite3_close(db)

}

}

}