equinox supplement

solution is to application:didFinishLauchingWithOptions: create a view controller in the method and appoint it as the rootviewcontrollerof window . The code is as follows:Func Application (Application:uiapplication, Didfinishlaunchingwithoptions launchoptions: [NSObject: Anyobject]?) -Bool { Self. Window=UIWindow(Frame:uiscreen. Mainscreen(). Bounds) Self. Window. Rootviewcontroller=Uiviewcontroller()//This is where a new view controller is created.Let MainView = Self. Window!. Rootviewcontroll

How to supplement the page capture of other sites across sites and capture site pages In practical applications, we often encounter special situations, such as the need for news, weather forecasts, and so on, however, as personal websites or websites with low strength, we cannot do this with so much human, material, and financial resources. What should we do?Fortunately, resources are shared on the Internet. We can use programs to automatically captu

floating point number (depending on display length)Percent% character "%"The format can be further controlled in the following ways:%[(name)][flags][width]. [Precision]typecode(name) is namedFlags can have +,-, ' or 0. + indicates right alignment. -Indicates left alignment. ' is a space that fills a space on the left side of a positive number to align with a negative number. 0 means using 0 padding. Width indicates display widthsPrecision indicates the precision after the decimal pointLike what

operation can be resumedif (self.queue.isSuspended) {self.queue.suspended = NO;}else{self.queue.suspended = YES;}Cancel all operations inside the queueAfter cancellation, the next operation of the currently executing operation will no longer execute, and will never be executed, as if all subsequent tasks were removed from the queueThe cancel operation is not recoverable[Self.queue cancelalloperations];---------Custom Nsoperation Cancel the operation---------------------------(void) Main{Time-co

class super ("Bird");} Override the Enjoy () method of the parent class Animal public void enjoy () {System.out.println ("bird cry ...");}}Overwrite the Main method:public class Test{public static void Main (string[] arge) {Cat c = new Cat ("CatName", "Blue");D og d = new Dog ("Dogname", "Blac K "); Bird B = new Bird (); Lady L1 = new Lady ("L1", c); Lady L2 = new lady ("L2", D); Lady L3 = new Lady ("L3", b); L1.mypetenjoy (); L2.mypetenjoy (); L3.mypetenjoy ();}}Operation Result:the importance

webpage, they will not receive messages sent to him by other people. So all we have to do is let the user connect to the server first. I simulate a connection here, which is to open the window and then close it. (At this point the user is connected, able to receive the message, but not displayed in the window) add the following code: (Code path: client.hub.js/chat.handlecustommsg)if (! log.imarea.length) { // There is only one connection once, and closing the message box will pro

1, about tagsLabel not allowed to write Terminator: AREA,COLCOMMAND,EMBED,HR,IMG,KEYGEN,LINK,META,PARAM,SOURCE,TRACK,WBRTags that can omit the Terminator: li,dt,dd,p,rt,optgroup,option,thead,tbody,tr,td,thTags that can be completely omitted: Html,head, body, colgroup,tbody2, about syntaxCase is available, but lowercase is recommendedFor Boolean property values, the assignment can be omitted at the specified time, specified as true, not specified as false;You can omit quotation marks, or use sing

Difference between SQL Server table variables and temporary tables (Supplement), SQL Server I. Table Variables Table variables are introduced in SQL Server 2000 for the first time. Table variables include column definitions, column names, data types, and constraints. The constraints that can be used in table variables include primary key constraints, unique constraints, NULL constraints, and CHECK constraints (foreign key constraints cannot be used in

If you are not installing CACTI to the Apache default network Directory folder location, then add the profile cacti.conf in/ETC/HTTPD/CONF.D and edit it as follows. Set/your/cacti/dir as your own cacti directory name. Update the Allow from 127.0.0.1 for any configuration you need (for example, a subnet segment for your company). Be aware of the configuration hints in the comments, especially if you have SELinux enabled!# cacti-the Complete rrdtool-based Graphing Solution## allows only localhost

the sequence of the positive sequence, i.e. [1,3,5]Reversed ([1,5,3]) # Returns the sequence of the reverse order, i.e. [3,5,1]Class, Object, propertyPython 123456789 # define Classclass Me(object): def Test(self): print "hello!" def new_test(): print "New hello!" me = me() Hasattr (Me, "Test") # Check if the Me object has a test propertyGetAttr (Me, "test") # Returns the Test propertySetAttr (Me, "test", New_test) # Set the test property to

Article title: Supplement to FreeBSD5 optimization. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. I still remember the last time I saw an article about FreeBSD 5 optimization, one year ago, when I started learning UNIX. In this year, I learned a lot about FreeBSD and UNIX. I am more interested in how FreeBSD maxi

Proxy Pattern _ supplementPreface: the internal principle, role, and implementation of remote proxy are explained in detail in the previous blog. This article is just a supplement to its content and introduces other proxies. virtual proxy first defines the role of virtual Proxy: before a large object is created, virtual proxy is used to replace a large object (this ensures that a large object is created only when necessary, avoid resource waste. We ma

State and continue execution, in fact, send () is a method other than next () recovery generator.In python2.5, the yield statement becomes the yield expression, which means that yield can have a value, and this value is the parameter of the Send () method, so Send (None) and next () are equivalent. Again, next () and send () The return value is the argument at the yield statementAbout Send (): The generator must be in a pending state before calling send to pass in a value other than none, or an

, and you must initialize it when you define it.4.static Static variables(1) Modify the local variables, the first call to open up memory space, after the call does not reclaim memory, retain the previous data, the call will not re-open memory and initialization(2) Static global variables, global variables can be accessed by external files, static global variables can only be used by this file5.extern keyword Usage(1) keywords that declare variablesConditional precompilation: Only one of these c

resource is accessed through the include () method of RequestDispatcher, then the filter is called. In addition, the filter is not called.FORWARD:If the target resource is accessed through the RequestDispatcher forward () method, the filter will be called, except that the filter will not be called.ERROR:If the error attribute =examerror.jsp is specified in the page directive of the a.jsp, then if an exception occurs in the a.jsp, it jumps to the examerror.jsp processing. When jumping to examerr

One, the file operationOpen () #打开文件Open (' A.txt ', ' W ', encoding= ' utf-8 ') #防止乱码R, a, w--read only, append write, write only three modesu# change the line breaks in all the files to \ nb# binary operationThe. Read () #读文件. ReadLine () #读取一行, a row of read files. ReadLines () #读文件的全部内容, the return is a listFor line in F:Print (line) #循环读取文件每行内容, recommend this methodThe. Write () #写. Wrielines () #写一个list. Seek (0) #指定文件指针位置. Tell () #读文件. Truncate () #清空. Close () #关闭文件. Flush () #缓冲区的文件立即

1. By default, the function declaration takes precedence over the precedence of the variable declaration, and once the variable is assigned, it is not overwritten by the function declarationvar A; function A () { console.log (' a ');} var b = 1; function B () { console.log (' B ');} Console.log (a); // function Aconsole.log (b); // b2. The identifier of the named function expression (that is, the function name) is not valid in the outer scopevar f = function foo () { return typeof foo;//foo

toilet can be normal, but the toilet is leaking. I still want to live in a normal facility where the teacher obviously makes me feel uncomfortable.SummaryAt this point, my bachelor's time is over, and I have said everything I can think of today. Although graduated, but does not mean that I will never leave Changchun science and technology, it does not mean that I left the university forever. In the future I will return to the Polytechnic, but also to the new university, which will be mentioned

created by the person.Traps for 3.description methodsIn calling the description method, self is not used, which causes the program to die.4. In memory management, the description method optimizes the memory solution (note autorelease use location)5. Related Printing Supplemental extensionstwo. Troubleshooting and analysis of test questions1. (Correct conclusion of the judgment question)1>object-c is a single inheritance.2> arrays can only be saved as objects3> Each object has a reference count4

See too many examples on the Internet, follow the steps, you can implement a simple message, receive messages. Generally not set any conditions, if you want to set up their own message channel, or to set something!http://localhost:15672 is the server graphical interface of RABBITMQ, first log in with Guest accountSwitch to admin big tab, then add user, fill in your own information, just username and password　　　　In the upper right corner there is virtual host, which creates a new virtual host, ju