##乱七八糟的基础知识测试
//: Playground - noun: a place where people can play
import UIKit
import Foundation
// +++++++++++++++++++++++ 字典，值传递
// +++++++++++++++++++++++ Range
let r = Range(0..<3) //old: let _ = NSRange(location: 0, length: 3)
// +++++++++++++++++++++++ 遍历数组
let arr = [1,3,5,2,4,6]
// 遍历数组
for (index,value) in arr.enumerated() {
print("\(index) - \(value)") // 下标 - item
}
// 遍历数组
for item in arr {
print(item)// 1 3 5 2 4 6
}
// 反向遍历数组
for item in arr.reversed(){
print(item)// 6 4 2 5 3 1
}
// +++++++++++++++++++ 正则表达式 密码强度校验
//要求密码长度最少12位，包含至少1个特殊字符，2个数字，2个大写字母和一些小写字母。: (?=^.{12,25}$)(?=(?:.*?\d){2})(?=.*[a-z])(?=(?:.*?[A-Z]){2})(?=(?:.*?[!@#$%*()_+^&}{:;?.]){1})(?!.*\s)[0-9a-zA-Z!@#$%*()_+^&]*$
//纯数字： ^\d+$
//纯字母： ^[a-zA-Z]+$
//纯特殊字符： ^[@#$%^&]+$ ps:特殊字符看你定义的标准是什么
//字母+数字： ^(?!\d+$)(?![a-zA-Z]+$)[a-zA-Z\d]+$
//字母+特殊字符: ^(?![a-zA-Z]+$)(?![@#$%^&]+$)[a-zA-Z@#$%^&]+$
//数字+特殊字符: ^(?!\d+)(?![@#$%^&]+$)[\d@#$%^&]+$
//字母+数字+特殊字符： ^(?!\d+$)(?![a-zA-Z]+$)(?![@#$%^&]+$)[\da-zA-Z@#$%^&]+$
do{
let pattern: String = "^(?!\\d+$)(?![a-zA-Z]+$)(?![@#$%^&]+$)[\\da-zA-Z@#$%^&]+$"
let input: String = "123qwe"
let regex: NSRegularExpression = try NSRegularExpression(pattern: pattern, options: NSRegularExpression.Options.caseInsensitive)
let match = regex.matches(
in: input,
options: NSRegularExpression.MatchingOptions.reportProgress,
range: NSRange(location: 0, length: (input as NSString).length)
)
match.count
}catch let err{
print("err \(err)")
}
// +++++++++++++++ while 1=白色，0=黑色; alpha 1=不透明，0=透明
UIColor(white: 0, alpha: 0.7)
// +++++++++++++++++++++ AnyObject.integerValue
let a:[String:AnyObject] = ["a":"-123a","b":123]
a["a"]?.integerValue // -123
a["a"] as? Int // nil
// +++++++++++++++++++++ 根据日期，获取星期
let dateFmt = NSDateFormatter()
dateFmt.dateFormat = "yyyy-MM-dd HH:mm:ss"
let date = dateFmt.dateFromString("2016-09-03 12:12:12")
date?.description
let interval = Int(date!.timeIntervalSince1970) + NSTimeZone.localTimeZone().secondsFromGMT
let days = Int(interval/86400) // 24*60*60
let weekday = ((days + 4)%7+7)%7
weekday == 0 ? 7 : weekday
let week = (days - 3) % 7;
// +++++++++++++++++++++++ String ---> Array
let str = "1,2,3,4,5,6"
let arr = str.componentsSeparatedByString(",")
// ++++++++ String.substring
let a = str.rangeOfString("4,")
// ++++++++++++++++++++++++ 时间戳 ---> 星期
let interval = NSDate().timeIntervalSince1970
let days = Int(interval / (60*60*24));
let week2 = ((days + 4)%7+7)%7
let week = (days - 3) % 7;
// ++++++++++++++++++++++++++ String / Int ---> Bool
let a = "true"
a.lengthOfBytesUsingEncoding(NSUTF8StringEncoding)
a.characters
a.characters.count
Bool(13)
a as? Bool
// ++++++++++++++++++++++++ String 转换为 Array dictionary
let str:String = "[{\"url\":\"http://123/1435910039433019072_lite.jpg\"}]"
let data = str.dataUsingEncoding(NSUTF8StringEncoding)
let any = try! NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments)
let arr = any as! NSArray
let dict = arr.firstObject as! NSDictionary
// ++++++++++++++++++++++++ 秒 转换为 时间长度
// 天 时 分 秒
var timeInterval = (60*60*24*2) + (60*60*5) + (60*3) + (20)
// 时间戳 --> 分钟
var dateStr = ""
if timeInterval >= 60*60*24 {
let v = timeInterval / (60*60*24)
timeInterval -= (60*60*24) * v
dateStr += "\(v)天"
}
if timeInterval >= 60*60 {
let v = timeInterval / (60*60)
timeInterval -= (60*60) * v
dateStr += "\(v)小时"
}
if timeInterval >= 60 {
let v = timeInterval / (60)
timeInterval -= (60) * v
dateStr += "\(v)分"
}
dateStr += "\(timeInterval)秒"
print("\(dateStr)") // 2天5小时3分20秒
//时间戳是指格林威治时间1970年01月01日00时00分00秒(北京时间1970年01月01日08时00分00秒)起至现在的总秒数。
//获取当前时间
let now = NSDate()
// 创建一个日期格式器
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy年MM月dd日 HH:mm:ss"
print("当前日期时间：\(fmt.stringFromDate(now))")
//当前时间的时间戳
let timeInterval:NSTimeInterval = now.timeIntervalSince1970
let timeIntervalInt = Int(timeInterval)
print("当前时间的时间戳：\(timeIntervalInt) ++ \(timeInterval)")
//将时间戳转为日期时间
let date = NSDate(timeIntervalSince1970: timeInterval)
print("对应的日期时间：\(fmt.stringFromDate(date))")
// 当前时间， 60*60（1小时）后的时间
let otherDate = NSDate(timeInterval: 60*60, sinceDate: now)
print("1小时后 日期时间：\(fmt.stringFromDate(otherDate))")
// 时间戳
// 晚 timeIntervalSinceDate 早 === 晚 - 早 === 正数 === 间隔秒钟
let difference = otherDate.timeIntervalSinceDate(now)
print("间隔秒钟：\(difference)")
// +++++++++++++++++++++ 字典 转 json str
let dict:[String:AnyObject] = ["a":"1:2:3","b":456,"c":"789c"]
var data = try NSJSONSerialization.dataWithJSONObject(dict, options: NSJSONWritingOptions.PrettyPrinted)
let jsonDict = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments)
var jsonStr = String(data: data, encoding: NSUTF8StringEncoding)!
jsonStr = jsonStr.stringByReplacingOccurrencesOfString("\n", withString: "")
print(dict)
print(jsonDict)
print(jsonStr)
// json ---> data ---> anyObject
data = jsonStr.dataUsingEncoding(NSUTF8StringEncoding)!
var any = try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments)
print("AllowFragments +++++ \(any)")
any = try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers)
print("MutableContainers +++++ \(any)")
any = try! NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableLeaves)
print("MutableLeaves +++++ \(any)")
// ++++++++++++++++++++++ 数组转json
// 字典
let d:[String:AnyObject] = ["a":"1:2:3","b":456]
print(d.description) // ["b": 456, "a": 1:2:3]
// 字典型数组 转 json 无法处理 1:2:3
var arr = [[String:AnyObject]]()
arr.append(d)
arr.append(d)
print(arr.description) // [["b": 456, "a": 1:2:3], ["b": 456, "a": 1:2:3]]
// 字符串数组 转 json 无法处理 1:2:3 多了 “”
var strArr = [String]()
strArr.append(d.description)
strArr.append(d.description)
print(strArr.description) // ["[\"b\": 456, \"a\": 1:2:3]", "[\"b\": 456, \"a\": 1:2:3]"]
// AnyObject Array 多了 \n 换行
var anyArr = [AnyObject]()
// dict --> data --> string
let j = try! NSJSONSerialization.dataWithJSONObject(d, options: NSJSONWritingOptions.PrettyPrinted)
let s = String(data: j, encoding: NSUTF8StringEncoding)!
anyArr.append(s)
anyArr.append(s)
var result = anyArr.description
result = result.stringByReplacingOccurrencesOfString("\n", withString: "")
print(result) // [{ "b" : 456, "a" : "1:2:3"}, { "b" : 456, "a" : "1:2:3"}]
// +++++++++++++++++ 前缀后缀
let a = "asdf1234\n778\n7641]789"
a.hasPrefix("a")
a.hasSuffix("]")
// ++++++++++++++++++++ 替换字符
var a = " 1 11 2 3\t222"
print(a)
var b = a
b = a.stringByReplacingOccurrencesOfString("\t", withString: "")
print(b)
b = a.stringByReplacingOccurrencesOfString(" ", withString: "")
print(b)
b = a.stringByReplacingOccurrencesOfString(" ", withString: "")
print(b)
// +++++++++++++++++ 字典转字符串
let d:[String:AnyObject]=["a":"aaaa","b":"bb"]
var s = d.description
print(s)
// +++++++++++++++++ 数组转字符串
let a = ["a","b","c"]
s = a.description
print(s)
//+++++++++++++++++++++ guard let 测试
func a(){
let d:[String:AnyObject]=["a":"aaaa","b":"bb"]
guard let a = d["a"] as? String where false else{
print(11)
return
}
print(a)
}
a()
//+++++++++++++++++++++++++ 当前时间
let format = NSDateFormatter()
format.dateFormat = "yyyy MM dd HH mm ss SSS"
format.stringFromDate(NSDate())
// +++++++++++++++++++++++++ 引用传递，改一个对象，影响到所有引用该对象的地方
class A{
var a = 10
}
class B{
var aA:A?
}
let a = A()
let b = B()
b.aA?.a
b.aA = a
let c = b.aA!
a.a
b.aA?.a
c.a
a.a = 20
a.a
b.aA?.a
c.a
b.aA?.a = 30
a.a
b.aA?.a
c.a
c.a = 40
a.a
b.aA?.a
c.a
// ++++++++++++++++++++++++++++++++++ string <---> int
let a:[String:AnyObject] = ["a":"123" , "b":123]
a["a"]?.integerValue
a["a"] as? Int
a["b"] as? String
String(a["b"] as! Int)
// +++++++++++++++++++++++++++++++++ int - string - data - string - int
let a = 123
let b = "\(a)"
let c = b.dataUsingEncoding(NSUTF8StringEncoding)!
let d = String(data: c, encoding: NSUTF8StringEncoding)!
let f = Int("123")
// +++++++++++++++++++++++++++++++++++ timeIntervalSinceDate
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd hh:mm"
let d1 = fmt.dateFromString("2016-06-12 11:12")
let d2 = fmt.dateFromString("2016-06-12 11:14")
d1?.timeIntervalSinceDate(d2!)
d2?.timeIntervalSinceDate(d1!)
// ++++++++++++++++++++++++++++++++++++++++
class B {
var b = 123
}
let a = B()
let b = a
a.b
b.b
a.b = 345
a.b
b.b
b.b = 789
b.b
a.b
// ++++++++++++++++++++++++++++++++++++++++++++
//将解析的更新人员数据批量同步到数据库
+(void)operateCompUsers:(NSMutableArray*)operateCompUsers
{
sqliteHelper *mysqlite = [[sqliteHelper alloc]init];
if (operateCompUsers.count<=0) return;
if([mysqlite openDatabase:@"ucab_db.db"])
{
NSMutableArray *transactionSql= [[NSMutableArray alloc]init];
for (int i=0; i<operateCompUsers.count; i++)
{
CompUser *operateCompUser = [operateCompUsers objectAtIndex:i];
if ([operateCompUser.operateType isEqualToString:@"0"]) //删除
{
NSString *nsstrSql = [[NSString alloc]initWithFormat:@"%@%@%@",@"delete from cloud_contacts where uid='",operateCompUser.uId,@"'"];
[mysqlite execSql:nsstrSql];
}
if ([operateCompUser.operateType isEqualToString:@"1"]) //可用，新增数据
{
//先将数据库中的数据删除
NSString *nsstrSql = [[NSString alloc]initWithFormat:@"%@%@%@",@"delete from cloud_contacts where uid='",operateCompUser.uId,@"'"];
[mysqlite execSql:nsstrSql];
//再添加一次
if (nil==operateCompUser.uId) operateCompUser.uId=@"";
if (nil==operateCompUser.cn) operateCompUser.cn=@"";
if (nil==operateCompUser.telephoneNumber) operateCompUser.telephoneNumber=@"";
if (nil==operateCompUser.departmentNumber) operateCompUser.departmentNumber=@"";
if (nil==operateCompUser.deptName) operateCompUser.deptName=@"";
if (nil==operateCompUser.coNo) operateCompUser.coNo=@"";
if (nil==operateCompUser.coName) operateCompUser.coName=@"";
if (nil==operateCompUser.cuOrder) operateCompUser.cuOrder=@"";
if (nil==operateCompUser.mobile) operateCompUser.mobile=@"";
if (nil==operateCompUser.cuMail) operateCompUser.cuMail=@"";
if (nil==operateCompUser.cuAllShow) operateCompUser.cuAllShow=@"";
if (nil==operateCompUser.cuEntryStatus) operateCompUser.cuEntryStatus=@"";
if (nil==operateCompUser.imagePath) operateCompUser.imagePath=@"";
if (nil==operateCompUser.sort) operateCompUser.sort=@"";
if (nil==operateCompUser.duty) operateCompUser.duty=@"";
if (nil==operateCompUser.sex) operateCompUser.sex=@"0"; //性别默认为男
//组sql语句
NSString *strSql = [NSString stringWithFormat:@"insert into cloud_contacts (uid,cn,telephoneNumber,departmentNumber,deptName,coNo,coName,cuOrder,mobile,cuMail,cuAllShow,cuEntryStatus,imagePath,sort,duty,sex) values ('%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@','%@');",operateCompUser.uId,operateCompUser.cn,operateCompUser.telephoneNumber,operateCompUser.departmentNumber,operateCompUser.deptName,operateCompUser.coNo,operateCompUser.coName,operateCompUser.cuOrder,operateCompUser.mobile,operateCompUser.cuMail,operateCompUser.cuAllShow,operateCompUser.cuEntryStatus,operateCompUser.imagePath,operateCompUser.sort,operateCompUser.duty,operateCompUser.sex];
[transactionSql addObject:strSql];
}
}
[mysqlite execInsertTransactionSql:transactionSql];
[mysqlite closeDatabase];
}
}//执行插入事务语句
-(void)execInsertTransactionSql:(NSMutableArray *)transactionSql
{
//使用事务，提交插入sql语句
@try{
char *errorMsg;
if (sqlite3_exec(database, "BEGIN", NULL, NULL, &errorMsg)==SQLITE_OK)
{
NSLog(@"启动事务成功");
sqlite3_free(errorMsg);
sqlite3_stmt *statement;
for (int i = 0; i<transactionSql.count; i++)
{
if (sqlite3_prepare_v2(database,[[transactionSql objectAtIndex:i] UTF8String], -1, &statement,NULL)==SQLITE_OK)
{
if (sqlite3_step(statement)!=SQLITE_DONE)
sqlite3_finalize(statement);
}
}
if (sqlite3_exec(database, "COMMIT", NULL, NULL, &errorMsg)==SQLITE_OK) NSLog(@"提交事务成功");
sqlite3_free(errorMsg);
}
else sqlite3_free(errorMsg);
}
@catch(NSException *e)
{
char *errorMsg;
if (sqlite3_exec(database, "ROLLBACK", NULL, NULL, &errorMsg)==SQLITE_OK) NSLog(@"回滚事务成功");
sqlite3_free(errorMsg);
}
@finally{}
}
// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/**
1. 打开数据库
2. 如果没有数据表，需要首先创表
3. 数据操作
*/
class SQLite {
var db: COpaquePointer = nil
/// 打开数据库
///
/// :param: dbname 数据库名称
///
/// :returns: 是否打开成功
func openDatabase(dbname: String) -> Bool {
// UnsafePointer<Int8> UnsafePointer<CChar>
// 对应C语言中的 char*
// filename 必须是完整的路径名
let path = dbname.documentPath()
println(path)
// sqlite3_open 如果如果数据库不存在，会新建数据库文件
// 如果数据库文件已经存在，就直接打开，返回句柄，不会对数据有任何影响
if sqlite3_open(path, &db) == SQLITE_OK {
println("打开数据库成功")
// 本质上只需要运行一次就可以了
if createTable() {
println("创表成功")
// TODO: 测试查询数据
let sql = "SELECT id, DepartmentNo, Name FROM T_Department;"
recordSet(sql)
} else {
println("创表失败")
}
} else {
println("打开数据库失败")
}
return false
}
/// 创建数据表，将系统需要的数据表，一次性创建
private func createTable() -> Bool {
// 准备所有数据表的 SQL
// 1> 每一个 SQL 完成后都有一个 ;
// 2> 将所有创表 SQL 写在一起，每一个换行添加一个 \n
let sql = "CREATE TABLE \n" +
"IF NOT EXISTS T_Department (\n" +
"id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,\n" +
"DepartmentNo CHAR(10) NOT NULL DEFAULT '',\n" +
"Name CHAR(50) NOT NULL DEFAULT '' \n" +
"); \n" +
"CREATE TABLE IF NOT EXISTS T_Employee ( \n" +
"'id' INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, \n" +
"'name' TEXT NOT NULL, \n" +
"'age' INTEGER NOT NULL, \n" +
"'department_id' INTEGER, \n" +
"CONSTRAINT 'FK_DEP_ID' FOREIGN KEY ('department_id') REFERENCES 'T_Department' ('id') \n" +
");"
return execSQL(sql)
}
/// 执行没有返回值的 SQL 语句
///
/// :param: sql SQL 字符串
///
/// :returns: 是否成功
func execSQL(sql: String) -> Bool {
/**
1. 数据库指针
2. SQL 字符串的 C 语言格式
3. 回调，执行完成 SQL 指令之后的函数回调，通常都是 nil
4. 回调的第一个参数的指针
5. 错误信息，通常也传入 nil
*/
return sqlite3_exec(db, sql.cStringUsingEncoding(NSUTF8StringEncoding)!, nil, nil, nil) == SQLITE_OK
}
/// 执行 SQL 返回一个结果集(对象数组)
///
/// :param: sql SQL 字符串
func recordSet(sql: String) {
// 1. 准备语句
var stmt: COpaquePointer = nil
/**
1. 数据库句柄
2. SQL 的 C 语言的字符串
3. SQL 的 C 语言的字符串长度 strlen，-1 会自动计算
4. stmt 的指针
5. 通常传入 nil
*/
if sqlite3_prepare_v2(db, sql.cStringUsingEncoding(NSUTF8StringEncoding)!, -1, &stmt, nil) == SQLITE_OK {
// 单步获取SQL执行的结果 -> sqlite3_setup 对应一条记录
while sqlite3_step(stmt) == SQLITE_ROW {
// 获取每一条记录的数据
recordData(stmt)
}
}
}
/// 获取每一条数据的记录
///
/// :param: stmt prepared_statement 对象
func recordData(stmt: COpaquePointer) {
// 获取到记录
var count = sqlite3_column_count(stmt)
println("获取到记录，共有多少列 \(count)")
// 遍历每一列的数据
for i in 0..<count {
let type = sqlite3_column_type(stmt, i)
// 根据字段的类型，提取对应列的值
switch type {
case SQLITE_INTEGER:
println("整数 \(sqlite3_column_int64(stmt, i))")
case SQLITE_FLOAT:
println("小树 \(sqlite3_column_double(stmt, i))")
case SQLITE_NULL:
println("空 \(NSNull())")
case SQLITE_TEXT:
let chars = UnsafePointer<CChar>(sqlite3_column_text(stmt, i))
let str = String(CString: chars, encoding: NSUTF8StringEncoding)!
println("字符串 \(str)")
case let type:
println("不支持的类型 \(type)")
}
}
}
}
// willSet +++++++++++++++++++++++
var a:Int? {
willSet{
print("willSet \(a) \t \(newValue)")
}
didSet{
print("didSet \(a) \t \(oldValue)")
}
}
a = 1
// gcd ++++++++++++++++++++++++++
class GCDDemo{
// 1 5 2 4 3
func method1(){
print("\(#function) 1")
weak var weakSelf = self
let queue:dispatch_queue_t = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
dispatch_async(queue) {
print("\(#function) 2")
weakSelf!.method2()
// dispatch_async(dispatch_get_main_queue(), {
print("\(#function) 3")
// })
print("\(#function) 4")
}
print("\(#function) 5")
}
// 1 5 2 4 3
func method2(){
print("\(#function) 1")
let queue:dispatch_queue_t = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
dispatch_async(queue) {
print("\(#function) 2")
// dispatch_async(dispatch_get_main_queue(), {
print("\(#function) 3")
// })
print("\(#function) 4")
}
print("\(#function) 5")
}
}
let c = GCDDemo()
c.method1()
// lazy +++++++++++++
class A{
init(){
print("init a")
}
deinit{
print("deint a")
}
}
class B{
lazy var a = A()
init(){
print("init b")
}
func bb(){
print("B \(#function)")
a
}
}
var b:B? = B()
b!.bb()
b = nil
// ++++++++++++++++++++++
class A{
init(){
print("init a")
}
deinit{
print("deint a")
}
}
class B{
var a:A?
init(){
print("init b")
}
deinit{
print("deint b")
}
}
var a:A? = A()
var b:B? = B()
b?.a = a
b!.a
a=nil
b=nil
// ---------------------------
class Test{
var a:String {
willSet {
print("a willset \(newValue)")
}
didSet{
print("a didSet \(oldValue) \(a)")
f()
}
}
var b:CGFloat
init(a:String,b:CGFloat){
self.a = a
self.b = b
f()
}
func f(){
print("f a = \(a)")
b = 100
}
}
let t = Test(a: "abc", b: 123)
t.a
t.b
t.a = "qwe"
t.a
t.b
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