sg110d 08

08-Graphics Context State stack上下文状态栈为内存中的一块区域,它用来保存前上下文当的状态.我们获取的图层上下文当中其实两块区域,一个是存放添加的路径,一个是用来保存用户设置的状态,这些状态包括线条的颜色,线宽等.当我们把上下文的内容渲染到View上面的时候, 它会自动将设置的所有上下文状态运行到保存的路径上面显示到View上面.如果想要有多种状态,可以先把路径渲染到View上面,再从新添加路径.添加完路径之后,重新设置上下文的状态.再把新设置的上下文状态渲染到View上面.我们可以利用上下文状态栈的方式,在设置状态之前,把之前的状态保存到上下文状态栈里面.下一次想要再使用之前的状态时, 可以从上下文状态当中取出之前保存的上下文状态.1.如何把上下文状态保存到上下文状态栈? CGContextSaveGState(ctx);2.如何从上下文状态栈中取出上下文状态? CGContextRestoreGState(ctx);Code implementation:

08: Stone Scissors Cloth Total time limit: 1000ms Memory Limit: 65536kB Describe Stone scissors cloth is a common scissors game. The stone wins the scissors, the scissors wins the cloth, Bushe the stone. If two people punch the same, then dead heat. One day, small A and small b just play stone scissors cloth. It is known that their punche

"Electromechanical Drive Control" study note 08-1Hu Hengxiang Machine Android 1301PLC the basic InstructionsDifferent plc, the programming language is not the same, but the basic function of the instruction is roughly the same. The following directives are generally available:1. input and output instructionsLD (Take command)LDI (take counter command)2. Logic Instructions1 ) logical "and" directivesand (with directives)ANI (with non-directive)2 ) logic

08: Character Triangle Total time limit: 1000ms Memory Limit: 65536kB Describe Given a character, use it to construct a isosceles character triangle with a length of 5 characters at the bottom and a height of 3 characters. Input The input has only one row and contains a single character. Output The character consists of a isosceles triangle with a

Take a plane trip1. Ó moistened で Air ticket (こうくうけん) to about します.Tickets can be booked at the ticket office.2. どの occupies passenger るつもりですか, a flying machine.Are you going to fly in that company?3. Tokyo Line きの7 Month 4th the cut of 1 pieces of ください.Please give me a ticket to Tokyo on July 4.4. The はいつですか of this day.When is the next flight?5. Today は Yokohama Line きの will がありますか.Is there a plane to Yokohama today?6. どのぐらい flew びますか.How long does it take to fly?7. When occupies from the main

Time: 2015-08-11 15:00 ~ 16:00Location: Hung Tong Building, posts and telecommunicationsCategory: Electric surface1. Ask your CV.2. Algorithm questions:Platform: Collabedit/*1. Converting a string to an integer*/#include string>#includeusingSTD::string;stringTrimConst stringstr) { intFirst_index =0; while(First_index str.size ()) { if(Str[first_index]! =' ') Break; First_index++; } intLast_index = Str.size ()-1; while(Last_i

Time: 2015-08-11 11:30 ~ 12:30Venue: 11/F, Building B, Ying Mansion, 48th Jia Chun Road, China today's headline1. I asked a lot about the project of my resume first.2. Algorithm title: An array in sequence, starting from a position to move the number of subsequent to the front. For example, "123456789" moves from the 7th element to the first, "789123456", in which case a number is found.intSearchintA[],intLeftintRightinttarget) { if(Left Right

08-Dynamic Type vs. static type1, what are dynamic types and static types1) Dynamic languageAlso called dynamic programming language, refers to the program at run time can change its structure: New functions can be introduced, the existing functions can be deleted and other changes in the structure. For example, the well-known ECMAScript (JavaScript) is a dynamic language. In addition, such as Ruby, Python and so on are also dynamic languages, and C,

Time: 2015-08-13 16:40 ~ 18:20Location: No. 10th, North East Wang Road, Haidian District, Beijing, 1th Building, Baidu Science and Technology Park 1. Ask your CV。。。2. AlgorithmsOnly asked an algorithm topic.Leetcode the original question slightly changed.https://leetcode.com/problems/copy-list-with-random-pointer/Title: On the basis of a linear list, each node adds a random pointer to the node or node after that node. Returns a deep copy.Solution 1:

Original: SSAS Series-"08" Multidimensional data (program shows Cube)1. Reference dll?After installing the MS SQL Server installation, you find that the Microsoft.AnalysisServices.AdomdClient namespace was not found in the new project "Add Reference", do you know what the situation is? Had to add the DLL, under "C:\Program files\microsoft.net\adomd.net\100\microsoft.analysisservices.adomdclient.dll" found the file, The last modification time for this

SDET work turned back to the development ranks. In our daily life, we also moved from the original shared rent to the place where we rented it separately. This is also the 3rd migration in Beijing in three years. In this year, my younger sister also graduated from college, she started her career. This year, my shares were deeply covered. The most important thing is to propose to my girlfriend who has been with me for many years. This is the most important decision I made in my

/ Wkiom1unxnbabxkiaakctg6vqck552.jpg "alt=" Wkiom1unxnbabxkiaakctg6vqck552.jpg "/>after discovering the cluster, tick the cluster-wide check box and click " Next Step "650) this.width=650; "title=" 05.png "style=" Float:none; "src=" http://s3.51cto.com/wyfs02/M02/5D/EE/ Wkiol1unx8pghhd3aajey83hg0y363.jpg "alt=" Wkiol1unx8pghhd3aajey83hg0y363.jpg "/>Select Host Group, click " Next Step "650) this.width=650; "title=" 06.png "style=" Float:none; "src=" http://s3.51cto.com/wyfs02/M02/5D/F2/ Wkiom1un

Item 08-Don't let exception escape destructor (Prevent exceptions from leaving destructors)C + + does not prohibit the destructor from spitting out the exception, but it does not encourage you to do so. There is a reason for that.Ex:Class widget{Public~widget () {...} Suppose this might spit out an anomaly.};void DoSomething (){Std::vector...//v here to destroy}When Vector v is destroyed, it is the responsibility to destroy all the widgets that it con

2015-08-27 PHP Force 024. String connection operation in PHPString connection operation in PHP read:6185Time: 2012-03-25 A simple instance of a connection to a PHP stringTime: 2013-12-30Many times we need to concatenate a few strings to show that in PHP, the strings are connected using "dots", which is the period in English.Defines a string $str 1 = "Hello world!"; $str 2 = "Welcome to Hutaow ' s blog!"; /Connect the above two strings separated by a

[2016-02-08] [JavaScript] [Implicit conversion of data types] Convert to Boolean type Undefined-False Null-False 0|0.0-False NaN--False string of length 0 (empty string), false\ Other Objects->true Convert to numeric type NaN undefined Null-0 True-1 False--0 String Digital--Digital content Non-numeric NaN Other Objects->nan Convert to String type Nu

To map first:　　It can be found that when using parseint () to convert a string, only "08", "09" is converted to 0, and the other is converted to the corresponding number, what is the reason?Originally when the first string is "0", JS default it is 8, so the problem comes, 8 binary numbers only 0-7, so the previous 0-7 is no problem.However to 8 and 9 The problem came, 8 and 9 in the 8 binary is unqualified, so the output is 0.Workaround:Add the parsei

1101:0 Starting point Learning algorithm 08--simple input and calculation (A+B) time limit:1 Sec Memory limit:128 MB 64bit IO Format:%lldsubmitted:3669 accepted:1997[Submit] [Status] [Web Board] DescriptionThe first 7 questions to do down, the output and calculation a little feel it?However, it is a pity that the previous practice, as if too dead, wrote a calculation 3+4 program, calculate 5+6 and have to change the program, the computer real

Because the project needs to use a given time format, such as ' 2013-08-30 ', need to calculate its and current time interval, need to calculate the time interval, their own online search, and do a simple collation, the overall idea is divided into 3 steps: 1. Converts the given time and current time to milliseconds 2. Calculates the millisecond difference between the current time and the given time 3. Converts the millisecond difference to days. The

Linux Network Service 08--postfix mail system (ii) First, enable SMTP authentication 1.SMTP Authentication Overviewin the Postfix mail system, you can use Cyrus SASL(Cyrus Simple authentication and Security Layer ) Simple authentication security layer software to implement the basic SMTP authentication mechanism. Postfix by invoking the library of Cyrus SASL , using the authentication services provided by the Cyrus SASL SASLAUTHD to check the syste

Find files that contain BOM headers under Linux and clear BOM header commands 2014-08-16 12:30:50Classification: System operation and MaintenanceLocate the file that contains the BOM header, as follows:Click ( here) to collapse or open Grep-r-i-l $ ' ^\xef\xbb\xbf '. \XEF\XBB\XBF is a 16 binary representation of the UTF8 BOMThis command removes the BOM header from the current directory and all subdirectories.Click ( here) to collapse or open