note 10 1 charger

command > file redirects the output to file.Command redirects the input to file.command >> file redirects the output to file in an append manner.n > file redirects the file descriptor n files to filename.n >> files redirect files with file descriptor N as an append to file.N > m merges the output file m and N.N Note: File descriptor 0 is typically standard input (STDIN), 1 is standard output (STDOUT), and

, creating a list of 1 million elements takes up a lot of storage space, and if we just need to access the first few elements, the vast majority of the space behind it is wasted.If the list can be calculated as needed, one side of the loop can solve the above problem. This mechanism is called the Generator (generator).　　There are two types of generators, the first of which is to change the [] in the list generation to (), and the second is to include

: (Uiscrollview *) ScrollView Withview: (UIView *) view{NSLog (@ "%s", __func__);}3> is scaling, and usually does not need to implement-(void) Scrollviewdidzoom: (Uiscrollview *) ScrollView{NSLog (@ "%s", __func__);NSLog (@ "%@", Nsstringfromcgaffinetransform (Self.imageView.transform));}4> to complete the scaling, and usually does not need to implement-(void) scrollviewdidendzooming: (Uiscrollview *) ScrollView Withview: (UIView *) View Atscale: (cgfloat) scale{NSLog (@ "%s", __func__);}_______

FileInputStream=NewFileInputStream ("Test.zip"); Checkedinputstream Csumi=NewCheckedinputstream (FileInputStream,NewAdler32 ()); Zipinputstream in2=NewZipinputstream (NewBufferedinputstream (Csumi)); ZipEntry ZipEntry; System.out.println ("Checksum:" +csumi.getchecksum (). GetValue ()); while((ZipEntry = In2.getnextentry ())! =NULL) {System.out.println ("Reading file:" +zipentry); intx; while((x = In2.read ())! = 1) {System.out.println (

that a feature is not working properly.3. User Agent Detection: Use the user agent string to determine the actual browser used.10th Chapter DOM1. The document node is the root node of each document. 2.Node Type: All node types inherit from the node type, sharing basic properties and methods.Basic properties: Nodetype,nodename,nodevalueNode Relationship: Childnodes,parentnode,previoussibling,nextsibling,firstchild,lastchild,haschildnodes (), ownerDocumentOperation node: AppendChild (), InsertBef

C # programmer's Unity 3D note (10): Unity3D mathematical model of displacement and Rotation?? The core reason is that the concept of 3D mathematics in U3D is not flexible enough. So the system learns again-the third learning 3D mathematics. This time, we hope to implement the following simple functions: For example, in a small map, you want to dynamically draw the current position of the Player and the

variables, or global functions, put them outside the if,for, etc.The FOR function does not use the defined variable i directly, otherwise there will be a hidden danger (we should be very careful when using the For loop, put in a different position, may be different values)For example:1 DOCTYPE HTML>2 HTML>3 Head>4 Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">5 title>Untitled Documenttitle>6 7 8 9 Head>Ten One Body> A - inputtyp

-SHOWSIZE/2; End page number currently displayed: showend=showstart+showsize-1; Fuzzy query:SELECT COUNT (*) from stud where 1=1 and ..... 5. Results map: 6. Code implementation Required packages and configuration files: Myconutil.jar----C3p0pool Tool class Commons-dbutils-1.4.jar mysql-connector-java-5.1.34-bin.jar C3p0-0.9.1.2.jar C3p0-config.xml

The builder mode separates the construction of a complex object from its representation, so that different representations can be created during the same construction process. For a piece of obscure text, the method to create different representations is to pass in the created parameters during the creation process. For details, see the code.10. 1. Explanation Main (), customer CCarModel, Product Model CBen

In many versions of Linux, it can be roughly divided into two series, namely: Redhat system Linux,debian system Linux. In the two different systems of Linux, the management of the package is also a certain difference, but their principles are roughly the same. This note will focus on the management of the software package in Redhat Linux, and briefly on the management of the Debian System Linux package. Its approximate structure is as follows:· Redhat

: (Nsindexpath *) Indexpath{if (indexpath.row% 2) {return uitableviewcelleditingstyleinsert;} else {return uitableviewcelleditingstyledelete;}return uitableviewcelleditingstyleinsert;}4,cell will be called when it is selected or uncheckedIf you are a custom cell control, all child controls should be added to the Contentview-(void) setselected: (BOOL) selected animated: (bool) Animated {[Super setselected:selected animated:animated];Configure The view for the selected stateif (selected) {Self.con

,sizeof(A.data)); } ~a () {cout"destructor"DeleteDatacoutPrivate:Char* DATA;};intMainintargcChar* argv[]) {a A; A B (a);return 0;}With single-Step debugging F11:1, the program execution to object A's instantiation:2. Enter the constructor of object A:3, at this time in the heap for data to open up a memory, memory address is 0x005584f84, notice, in shallow copy, the program runs directly to return 0； . While deep copy, F11 after entering the copy cons

referenced by any file, you can call Os.path.append (the directory where the module file is located) to add the directory of the module to the system.Example: Assuming the file structure~/| Module # folder module # call the ' Hello ' module program file #Hello folder # Module file # Module bytecode filetest.py:# Incoding:utf-8 Import sys sys.path.append ('./hello'# Hello folder under current directory import # file name as module name, no suffix required. py ~Hello.hello () Hello.bokeyua

property is initialized in the constructor. public class Httpmethodconstraint{public Httpmethodconstraint (params string[] allowedmethods);p rotected virtual bool Match (HttpContextBase httpcontext,route Route, String parametername,routevaluedictionary values,routedirection routedirection);p ublic icollectionAlso for the example shown in the previous demo, we will apply a httpmethodconstraint object as a constraint to the registered route object as follows when we perform a route registration .

test.txt 192.168.1.100# lsEtc bin Init media etc_ro test.txtHome mnt var dev tmpSYS proc USR sbin lib# cat Test.txtThis was a test file in UbuntuThe download is successful and the file can be viewed correctly!5.2 Testing uploads files on the MT7688 board to Ubuntu: I created a 123.txt file on MT7688is now on the MT7688 Development Board:# lsEtc bin Init media etc_ro test.txtHome mnt var dev tmpSYS proc USR sbin lib# Touch 123.txt# echo "This was a test file in MT7688" >> 123.txt# Cat 123.txtThi

0. The most important built-in exceptionException: The base class of all exceptions.Attributeerror: attribute reference or assignment ErrorIoerror: attempts to read or write a file that does not exist.Indexerror: use index that does not exist in sequenceKeyerror: Use a key that does not exist in mappingNameerror: variable name not foundSyntaxerror: syntax errorTypeerror: Use the Error Type in built-in functionsValueerror: Type pair, but the value is incorrectZerodivisionerror: Division by zero

Learning ASP. NET MVC5 framework secrets note-ASP. NET routing (10), mvc5-asp.net1. Default Value of the Variable Because we have defined the default value (areacode: 010; days: 2) for the variables that define the region number and number of days in the URL template, if you want to return the weather in Beijing for the next two days, you can directly access the application root address, specify only the sp

First, function operation1#include"stdafx.h"2#include 3#include string>4 usingstd::cout;5 usingstd::cin;6 usingStd::endl;7 usingSTD::string;8 intFactint);//If you don't see the identifier, you can put the fact function in front of the main function without saying that.9 int_tmain (intARGC, _tchar*argv[])Ten { One intNum,result; ACin>>num; -result =fact (num); -cout"the factorial result is:"Endl; theSystem"Pause"); - return 0; - } - intFactintnum) + { - inti =

) throws exception{for (color c:color. Values ()) {system. Out. (c. Ordinal () + "----" +c. Name () + "----" +c. Getname} } } /span> Java.util.EnumSet and Java.util.EnumMap are two enumeration collections. Enumset guarantees that the elements in the collection are not duplicated; The key in Enummap is the enum type,and value can be any type Copyright NOTICE: This article uses the BY-NC-SA agreement to authorize, reproduced the Wheat Field Technical blog article

in the class file, and the virtual machine can obtain annotation information at run time @Retention (retentionpolicy. 4. Get annotations Using Reflection Some of the previous blogs have talked about reflections, which can also be used to capture the information of annotations, similar to the above. In the example above, two kinds of annotation information are defined, one is applied to the class or interface, one is applied to the method, and then the correspondin