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(instancevariable);}); ID localvariable = instancevariable; Dispatch_async (Queue, ^{ /* localvariable is used by value, a strong reference are made to localvariable (and not to self ).*/ Dosomethingwithobject (localvariable); });Using Blocksinvoking a BlockIf you declare a block as a variable, you can use it in a function, for example:Int (^onefrom) (int) = ^ (int anint) { return anInt-1;};printf ("1 from-is%d", onefrom);//Prints "1 from 9"Float (^distancetravele

1. Write out the following outputvar Ten ; Sayhi (); function Sayhi () { ten; Console.info (a); return ( ten);2. Write out the following outputvar Ten ; Sayhi (); function Sayhi () { var; Console.info (a); return A;} Console.log (a); ( ten);3. Assume that there are 4 P tags on the pagefunction init () { var ps = document.getElementsByTagName ("P"); for (var0; i ) { = function () { Console.log (i);}} } Init ();4. Write outputvar add = function (m

HTTP method supported by the resourceContent-type: Type of entity main classContent-encoding: The encoding method that the entity body applies ToContent-language: The natural language of the entity bodyContent-length: The number of bytes of the entity PrincipalContent-range: The position range of the entity body, which is typically used when making partial requests12, HTTP and HTTPS pros and cons?A, the communication using plaintext is not encrypted, the content may be eavesdropping, that is, c

access to restricted resources and can has a negative impact if used incorrectly, they requ IRE user ' s approval at installation. To be taken as the input of a machine-learning algorithm, permissions is commonly coded as binary variables i.e., an elem Ent in the vector could only take on the values:1 for a requested permission and 0 otherwise. The number of all possible Android permissions varies based on the version of the OS. In this task, for each APK file under consideration, we provide a

Because our team's golden point game results are second, it is supposed to be able to choose a choice of items, so the following is only a list of our selected items.Optional Item Name: board game app (tentative, name not yet)Introduction: This app integrates a variety of board games, mainly including who is Undercover, werewolf kill, etc. (initially will do one or two first). The use of the scene is mainly in the offline party for everyone to use for entertainment. The functionality of the soft

understand the basic principles of HTTP communication, it is convenient for you to use the API process more accurate.(4) You still need to go through the official documentation to find out how each API works and how it is used.(5) You can also see that you need to know how the client sends the message (see the first line of code)(6) This is a good breakthrough, let yourself to take the initiative to find some demo to deepen their cognition.(7) for network mode, still need to add permissions on

or complete:div{Box-shadow:inset 5px 0px 0 0 deeppink; }Law V: Drop-shadowDrop-shadow is one of the filters in the CSS3 new filter filter, but it can also generate a shadow, but it has a numeric parameter of only 3, less than Box-shadow. can be viewed in w3cschool, very simple. div{filter:drop-shadow(-5px 0 0 deeppink); }Law vi: Gradient lineargradientFlexible use CSS3 gradient can complete a lot of unexpected graphics, CSS3 gradient into linear gradient and radial gradient, the subject

=100,a,b,c;while (iA=parseint (i/100);B=parseint (I%100/10);C=parseint (I%10);if (a*a*a+b*b*b+c*c*c==i) document.write (i+ "i++;} for loop notation, the code is as follows:for (Var i=100,a,b,c;iA=parseint (i/100);B=parseint (I%100/10);C=parseint (I%10);if (a*a*a+b*b*b+c*c*c==i) document.write (i+ "}Operation Result:Third, Fibonacci sequence while loop, the code is as follows:var a = 1;var b = 1;var i = 1;var C;document.write (A + "," +b+ ",");while (iC=a+b;A=b;B=c;i++;document.write (c+ ",");} f

Originating from:http://blog.csdn.net/qq_26525215 @EnableAspectJAutoProxy@EnableAspectJAutoProxy annotations Activate aspect automatic proxy Aop:aspectj-autoproxy />Turn on support for ASPECTJ Auto Proxy.When using automatic proxy for AOP, if you understand the dynamic agent of Java, it is easy to familiarize yourself with the automatic agent of AOP.@EnableAsync@EnableAsync annotations turn on support for async methods. This is believed to be more familiar to everyone. It should all be unde

of all volumes is the file capacity of the entire storage system. A volume can consist of one or more storage servers, and the files in a storage server under a volume are the same.Multiple storage servers in a volume play a role of redundant backup and load balancing.22. When you want to share your things to your leader, how will you tell him about your share?1. What is shared?2, why to use3. How to use4, using the problem how to maintainThis article is from the "Wsyht blog" blog, make sure to

, and modify the trainning in the file to LLL.Command format:find/data/-type f-name "*.txt" |xargs sed-i ' s#trainning#lll#g 'Sed-i ' S#trainning#lll#g ' $ (find/data/-type f-name "*.txt")find/data/-type f-name "*.txt"-exec sed-i ' s#trainning#lll#g ' {} \;Question TenthFind all files under/data that are larger than 1M at the end of log copy to/tmp.Command format: Find/data-type f-name "*.log"-size +1mMethod 1CP $ (Find/data-type f-name "*.log"-size +1m)/tmpMethod 2Find/data-type f-name "*.log"-

{ String[] value() default {}; }2) New Configuration classpackage com.wisely.highlight_spring4.ch3.annotation;@ABC("com.wisely.highlight_spring4.ch3.annotation")public class DemoConfig {}3) Service Beanpackage com.wisely.highlight_spring4.ch3.annotation;import org.springframework.stereotype.Service;@Servicepublic class DemoService { public void outputResult(){ System.out.println("新注解获取Bean"); }}4) Testingpackage com.wisely.highlight_spring4.ch3.annotation;import org.spri

Uva10494:if We were a child Again large number division plus redundancyImportjava.util.Arrays;ImportJava.util.Scanner;Importjava.math.*; Public classmain{ Public Static voidMain (string[] args) {Scanner cin=NewScanner (system.in); BigInteger A, B; String s; while(Cin.hasnext ()) {a=Cin.nextbiginteger (); S=Cin.next (); b=Cin.nextbiginteger (); if(S.equals ("/") {System.out.println (a.divide (b)); } Else if(S.equals ("%") {System.out.println (a.mod (b)); }} cin.close

(1); f[1]=biginteger.valueof (1); f[2]=biginteger.valueof (2); for(inti=3;i) F[i]=f[i-1].add (f[i-2]); BigInteger A, B; intsum; while(Cin.hasnextbiginteger ()) {a=Cin.nextbiginteger (); b=Cin.nextbiginteger (); if(A.compareto (Biginteger.zero) ==0b.compareto (Biginteger.zero) ==0) Break; Sum=0; for(inti=1;i) { if(F[i].compareto (a) >=0f[i].compareto (b) ) {sum++; } if(F[i].compareto (b) >0) Break; } System.out.println (sum); } cin.close

the Pow method in math, which is a large number multiplicationImportjava.util.Arrays;ImportJava.util.Scanner;Importjava.math.*; Public classmain{ Public Static voidMain (string[] args) {Scanner cin=NewScanner (system.in); intn,t,cnt,ff; while(Cin.hasnext ()) {n=Cin.nextint (); CNT=0; FF=-1; int[] A=New int[n]; int[] b=New int[n]; for(inti=0;i) {A[i]=Cin.nextint (); } arrays.sort (a); for(inti=0;i) { if(a[i]>0) b[cnt++]=A[i]; } for(inti=0;i)

object. Conversely, when Getfullname () is assigned to the test variable, the context refers to the Global Object (window). This is because test is a property that is implicitly set to the global object. For this reason, the function returns the FullName of the window, that is, the value defined in the first row. NBSP; Question 5:call () and apply () Now let you solve the previous problem and make the final Console.log () print Aurelio De Rosa. NBSP; answer NBSP; The probl

Search and Replace1. Requirements Performs a find and replace on a sentence with a given argument and returns a new sentence. The first parameter is the sentence on which to perform the find and replace. The second argument is the word that will be replaced (the word before it is replaced). The third parameter is used to replace the second argument (the replaced word). Preserves the case of the original word when replaced. For example, if you want to replace the word "bo

*)Data); } int size () {returnCList -Size (); } T get (int k) {return(T) CList -Get (k); }protected: List_c*CList;};#endif //LISTIn this way, the benefits are, first of all, the template can be encapsulated operations, and secondly, in the encapsulation class, dynamic adjustment of internal instances.For an incoming type, you can determine whether it is suitable for the current template, and if not, you can make a dynamic error in it.Finally, the use of the template:#include #include "list"using

("\tdefine prop:%s\n", Name.c_str ()); }} va_end (AP); }};va_list ap; 可变参数列表va_start(ap, meta_class); 这里的第二个参数，是当前函数的最后一个固定参数位置void* p = va_arg(ap, void*); 可以用来获得一个固定类型的参数Release Resources after use:va_end(ap); To support both function and attribute declarations, we define the following macros:#ifndef Defreflectfunc#define DEFREFLECTFUNC (class_name, func_name) \Auto func_name# #_function_pointer = class_name::func_name#endif#ifndef Reflectclass#define REFLECTCLASS (class_name) \imetaclas

with the CPU word length, if there are cross-platform requirements of software, it is best to use cross-platform-defined types.In C + + architecture, data tends to have memory alignment problems, and some compilers can set them up by compiler directives, which are best avoided by avoiding them.When you cross-platform, you should also be careful about exception handling code, because some versions of the C + + compiler do not conform to specifications for thrown exception specifications.In addit