note 9 fingerprint

[Guide] [Design mode sorting Note 1] basic knowledge [Design mode sorting Note 2] simple factory Mode) [Design mode sorting Note 3] factory Mode) [Design pattern sorting Note 4] abstract factory pattern (Abstract Factory) [Design pattern sorting Note 5] creator pat

C ++ Primer study note _ 23 _ class and data abstraction (9) -- four object lifetime and scope, static usage summary, primer_23 C ++ Primer study note _ 23 _ class and data abstraction (9) -- four object lifetime and scope, static usage Summary Preface: The memory occupied by the program is divided into the followin

Readlines:size Ibid. It returns a list of behavior units, that is, the equivalent of executing readline (), getting each row, and then putting the string of that line into a list as an element in the list, and finally returning the list. >>> f = open ("You.md")>>> content = F.readlines ()>>> Content[' You Raise Me up \ n ', ' when I am down and, oh my soul, so weary; \ n ', ' then troubles come and my heart burdened is; \ n ']>>> for line in content: #使用循环取出.. pri

Operating System Concepts Learning Note 9 Thread overviewA single process can include multiple control threads.Thread--a basic unit of CPU utilization, which is the basis of forming multi-threaded computer.A thread is the basic unit used by the CPU and consists of a thread ID, a program counter, a collection of registers, and a stack. It shares code snippets, data segments, and other operating system resour

Let's talk about my understanding of the JavaScript prototype and closure series (note 9 ), Related reading: About my understanding of the JavaScript prototype and closure series (note 6) about my understanding of the JavaScript prototype and closure series (note 8) Scope Reference the definition of scope in JavaScript

"/>3 Outputname= "Output">0Output/>4 form>Range is a slider effect and can be used with the 5. Date typeDateTime type Google Chrome does not support6. Color type1 type= "Color" name= "Colordemo"/>7. Automatic notification of Forms1 inputtype= "text"AutoComplete= "On"name= "Demoautocomplete"List= "Autonames" />2 DataListID= "Autonames">3 optionvalue= "Experimental Building" >option>4 optionvalue= "HTML5" >option>5 optionvalue= "Input Tag" >option>6 DataList> Form new

(); } } # Scala Equivalentclass book{ "non-fiction"}Object book{ = new book ()}5. Handling Exceptions# A Scala method that throws an Exceotionclass someclass{ def ascalamethod{throw new Exception (" exception " )}}# calling a Scala method from a Java classpublc static void Main (string[] args) { = new SomeClass (); S.ascalamethod ();} # The uncaught exception causes the Java method to Fail[error] (run-main) java.lang.exception:exception! java.lang.

Systick_configuration (void){systick_current=0; Current Value Registersystick_reload=20000; Reload register, System clock 20M interrupt once 1mSsystick_csr|=0x06;//HCLK as SYSTICK clock, SYSTICK interrupt enable bit}Interrupt handling:void Systick_handler (void)//Interrupt function{extern unsigned long timingdelay; Delay time, note defined as global variablesystick_current=0;if (timingdelay! = 0x00)timingdelay--;}Using the Systick delay function:unsi

(ServletContext, HttpS ... ) is exactly the same as the property APIFor enumeration, see Java-enumeration Summary by IAMTJW5, the bad side of the property. •. ```.. ``.. `.`.`...`.. Context properties are not thread safe! A context property may be changed and accessed by multiple servlets at the same time. The bad solution is to add synchronized to doget (or other methods), which does not solve the problem because synchronized can only prevent other threads in the same servlet from acc

This article mainly introduces the relevant information about my understanding of the JavaScript prototype and closure series (note 9). For more information, see Related reading: About my understanding of the JavaScript prototype and closure series (note 6) about my understanding of the JavaScript prototype and closure series (

is omitted.The/\s+/is capable of making blank cuts. such as: Split/\s+/, $some _input; #全部的空白都当作一个空格处理, omit empty fields at the beginning7. String Connection: JoinMy $x = join ":", 4,6,8,10; #结果为 $x = "4:6:8:10";Combine with split to split first. Then connect with a different delimiter.8. m//in the context of a listWhen using m//in the context of a list, assuming the match succeeds, the list of all captured variables is returned. Match failure returns an empty list: my ($first, $second, $thi

); }} Public classtemperatureargs:eventargs{ PublicTemperatureargs (floatnewtemprature) {Newtemprature=newtemprature; } Public floatnewtemprature {Get;Set; }}//once the C # compiler encounters the event keyword, it generates CIL code that is equivalent to the code in the Thermostat2 class. Public classthermostat2{/*private eventhandler*/}//implementation of custom events Public classthermostat3{protectedEventhandlerOntemperaturechange; Public EventEventhandlerOntemperaturechange {add {//Th