robot chapter 5 summary

= {{...},{...},{}};2.3) Traversal caseImportjava.util.scanner;classtestarr{publicstaticvoidmain (String[] Args) {/*int[][]arr={{1,2,3},{2,3,4},{3,4,5}};int[][]_arr={};int[][] arr1=newint[3][2];int[][]_arr1=newint[][]{{1,2,3},{2,3,4 },{3,4,5}};int[][]arr2=newint[3][];arr2[0]=newint[]{1,2,3}; Arr2[1]=newint[]{2,3,4};arr2[2]=newint[]{5,6,7};//int[][][]arr3 =newint[5][6][6];//traversal of a two-dimensional array //a layer of loops is the traversal of all

UITableViewCell(2) Rewrite Initwithstyle:reuseidentifier: MethodAdd all the child controls that need to be displayed (you don't need to set the child control's data and frame, and the child controls are added to the Contentview)One-time property setting for child controls (some properties need to be set only once, such as fonts \ fixed images)(3) 2 models availableData model: Storing text data \ Picture dataFrame model: The height of the Frame\cell that holds the data model \ All child controls

inserts the keyword "a" in the map and initializes the value.11. Find the specified element in map or Multimap.The following 5 member functions are available:C.find (k): An iterator that returns KEY==KC.count (k): Returns the number of elements in the Key==kC.lower_bound (k): An iterator that returns the first element of a key>=kC.upper_bound (k): An iterator that returns the first element of a key>kC.equal_range (k): Returns the pair object of the

cell by way of code(1) New? A class that inherits from UITableViewCell(2) Rewrite Initwithstyle:reuseidentifier: MethodAdd all the child controls that need to be displayed (you don't need to set the child control's data and frame, and the child controls are added to the Contentview)One-time property setting for child controls (some properties need to be set only once, such as fonts \ fixed images)(3) 2 models availableData model: Storing text data \ Picture dataFrame model : The height of t

1-list lists refer to an ordered set of headings, and arrays are variables that store lists.More precisely, a list refers to data, whereas an array refers to a variable.Accessing elements in an array$fred[0] ="Yabba";$fred[1] ="Dabba";$fred[2] ="Doo";$number=2.71111;Print $fred[$number-1];#Dabba If the subscript is not an integer, the decimal will be shed. Print $fred[145]#returns UNDEF if no subscript is presentSpecial array index to get the last element$rocks [0"one"; $rock ["last"; Print $roc

it will be an error ( you can try it yourself to see what the situation is ).18. Assignment operators achieve copy assignment and move assignment two functions P478If the parameter of the assignment operator is a call to a value , the initial taxiing parameter with the argument needs to call the copy constructor ( The argument is an lvalue ) or move the constructor ( the argument is the right value ). Then the equivalent copy assignment and move assignment can be implemented in the following wa

5th Chapter Statement1. The case label in switch must be an integer constant expression and cannot be a variable or a non-integral type:Note that the second case 3.14 does not have an error in c++11, but the compilation does not pass in c++98.2. Note that the case statement of the switch statement initializes a variable:A case statement cannot skip initialization of a variable, and you can skip the definition of the variable.3. The scope for statement

time, but ultimately unsuccessful, if not to describe the life at that time, is "no money, silly music"At the beginning of the year 13 is really very confused, the specific situation, you can see my 2013 summary, I will not do more explanation, here mainly on the mentality of the 2013 overall talk about it.13 is a good year for me. In terms of wages, the end is also divided into more than 20,000 yuan, and then the monthly salary of 2000 more than a y

parameter problem; 3. "Wild Pointer" question; 4. Programming recommendations. Exception Handling issuesException handling mechanisms are useful, but are also prone to misuse and cause code clutter. In the process of using exception handling, it must be very clear that there is no exception thrown and after the exception of the program execution process, grasp the exception handling of the jump and nesting mechanism, and pay attention to the exception handling of memory problems. Performance Is

The software process is the software engineering staff to obtain software products in the software tools to implement a series of project activities. The basic activity steps of the software process are1 questions raised, 2 software Requirements Specification 3 software Design 4 software implementation 5 software validation 6 software evolution.The model of software process includes waterfall model, rapid prototype model, increment model, Helix model,

3rd chapter strings, Vectors and arrays1. How do I read a whole line of content with a string?You can use Getline (cin,s). Of course getline () can also be used as a while loop to read input judgment conditions.2. String literals and literal values of strings are addedSince the + method is left-to-right, so long as the two values are guaranteed to be added, at least one of the two sides of the + sign is a string on the line.3. String can be added not

segment:" What is the MAC address? " "Other hosts on the network do not respond to ARP queries, and only Host B responds to host A when it receives this frame:" The MAC address is 00-aa-00-62-C6-09 ". In this way, host a knows the MAC address of Host B and it can send messages to Host B. It also updates its own ARP cache table, and the next time it sends information to Host B, it can be found directly from the ARP cache table. The ARP cache table uses an aging mechanism that, for a period of ti

identifiers cannot have duplicate names with keywords.2 The variable name is all lowercase (if it consists of multiple words, the first letter of the following word is capitalized)3 constant names are all uppercaseFive, key wordsSome of the specific meanings in Java are called keywords (keyword), which are used as specialized strings.Most editors mark keywords in a special way.All Java keywords are in lowercase english.VI. Basic Data type conversionsAutomatic data type conversion float F = 2 +

that the server is temporarily over-loaded or is undergoing downtime maintenance and cannot process the request now. If you know beforehand that it takes time to release the above situation, it is best to write the Retry-after header field back to the client. PS: Status code and status inconsistenciesMany of the returned status code responses are wrong, but the user may not be aware of this. For example, there is an error inside the Web application, and the status code is still retur

selector is required. onthan delegate the more flexible.Many times we are only declaring event bindings, regardless of the event's destruction. However, when writing the front-end plugin, we need to provide the method of event destruction, which is provided to the plug-in consumer. The advantage of this is that the user is more controllable on the plugin, freeing up memory, and providing the performance of the page. varthat={}; $('. Event_dom '). On (' click ','. Childk_dom ', function(){});

1. Object-oriented has 3 main features, which are encapsulated. Succession, polymorphism.2, suppose a drug is set to inherit must specify Notfinal, this class cannot be inherited or.3, if you want to check out the data to sort, you can use map or order to define the function.4. In a class. The construction method provided by default requires that all property content be passed. Assuming that the user has the need, you can also use constructor to define the constructor that defines the parameters

by a long, off_t, and fpos_t three types, corresponding to three kinds of functions for locating and setting the current position of the stream.Longlong ftell (file *fp)int fseek (file *fp,long offset,int whence)off_t:off_t Ftell (FIEL *fp)int fseeko (FILE *fp,off_t offset,int whence)pos_t:int fgetpos (file *fp,fpos_t *POS)int fsetpos (file *fp,const fpos_t *pos)6 Formatting I/OFormatted output: printf, fprintf, sprintf, snprintf (can specify buffer length n compared to sprintf, overflow over l

segment register. When 8086CPU accesses memory, the segment register provides the segment address of the memory unit. The 8086CPU has 4 segment registers, where CS is used to store the segment address of the instruction. CS holds the segment address of the instruction, andtheIP holds the offset address of the instruction. 8086 machine, at any moment, theCPU will CS:IP pointing to the content as an instruction execution. 8086CPU working process:from CS:theIP points to the memory unit read instr

Places to be aware of:1. Overflow of integral type data;The maximum value for a int8 integer is 127 if the plus one is-128.2. Special type: plural:The complex number is actually composed of two floating-point numbers, one representing the real part and one representing the imaginary part.The 3.Go language stipulates that the opening brace "{" of a function, control structure, etc. must be placed on the same line as the function declaration or control structure. If you place the opening brace in

Git-byLinuxthe FatherLinuswriting, is a source code control software. Linusfrom the perspective of a file system expert and a kernel designerGitdesign, its unique design allowsGitwith exceptional performance and optimized storage capabilities,Gitin all respects is superior to other similar source control software. In learningAndroidandLinuxkernel, the process of driving development involves a lot of source code, and the code isGitmanagement, and therefore, in learningAndroidTransplant andLinuxUn