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class name1 . If the variables and member variables of the class have the same name1, point to the member variable name1.Class Child (Parent):Name3 = ' Name3 'def print1 (self):Print (Self.name3) # is correct, there are no variables defined for the instance. Self points to a variable of the class. print (self.name1) # Correct, there is no member variable defined for the class, self points to the member variable of the parent classPNS, execute system command (1)import OSOs.system ("command")ru

First, high-order function algorithm in Python1, the sorted () function of the sort sorted () function is a high-order function, you can also accept a key function to implement a custom function ordering, the function specified by key function on each sequence element, and according to the key function returned by the order of the results. By default, the sorting of characters is based on the size of ASCII, because ' Z ' 2, the higher-order function can accept the function as a parameter, you ca

" output.Test Six : Do not know why there is no LoadClass method in the code that ClassLoader has two parameters.Summary: to this end of the method comparison, this blog is mainly a more detailed understanding of the JVM load class process and different ways of the difference. It is actually a different degree of encapsulation, which is the difference in the granularity of the method. Of course, one thing has not been verified by its own test, either my method is wrong or the data is problematic

, allow_redirects =False)returnR.status_code#The requests library used in 2.7 or 2.6 doesn't seem to be there.===========================Conn= Httplib. Httpconnection ("192.168.1.212"); #You can also use get to start a data submissionConn.request (method="POST", url="/newsadd.asp?action=newnew", body=params,headers=headers); #returns the processed dataResponse =Conn.getresponse (); #determine if commit is successfulifResponse.Status = = 302:20.httplib request usage, GetResponse () for returning

-The three collections of Htmlcollection, NodeList and NamedNodeMap are "dynamic" and are the objects of life and breathing.-they are actually the result of executing queries based on the DOM structure, so changes in the DOM structure can automatically reflect these objects.-Each time the document structure changes, they will be updated. As a result, they always keep the latest and most accurate information.Let me take a look at the following code: var divs = document.getElementsByTagName ("d

up space in heap memory, not on stack memory references One of three features encapsulates: 1 to consider the state and behavior of an object as a unified whole, storing both in a separate module (class) and nbsp 2 "information hiding", hiding information that does not need to be known to the outside world, hiding objects as much as possible to realize the details of the function, the field encapsulation mechanism is embodied in the program: the state of the description object is represe

(String)); }Second, the use of the stack-delimiter matching.public int charat (char c) {for (int i = 0; i will ({Press into the stack once, once encountered)}] will be compared with the popup element, if it matches, then match. If not)}], the left sign of the stack pops up and the hint is where the specific right symbol type is missing. This is a tool that can be implemented using stacks.Stack of data into the stack and the time complexity of the stack is constant O (1), because it is indepe

() - { -System. out. println (n); - } + } - + classClasstemp extends Class A { at intm; - intN; - - /* - * Initialization of classes - */ in PublicClasstemp (intAintBintc) - { toSuper (a);//use Super to call the constructor of the parent class +m=b; - This. n=C; theSuper.p=c;//access to the parent class field requires the use of protected or public * } $ Panax Notoginseng /* - * Add a custom Function the */ + Public voidRun

Tag:integerclassflatint Array postaptstatcol Public Static int [] deepflatten (object[] input) { return arrays.stream (input) , { if (o instanceof object[]) { return arrays.stream (Deepflatten ( Object[])); } return Intstream.of ((Integer) o); }). ToArray ();}(iv) Flattening of arrays

";public void Func (Int. x) {class localinner{public void Method () {System.out.println ("Intra-domain class accesses the attributes of the outer classes:" +name);System.out.println ("Local class access includes parameters of its methods" +x);}} new Localinner (). method (); Instantiate a local class object in a method within a local class, and invoke its method}}4. Anonymous inner class: If an inner class is used only once throughout the operation, it can be defined as an anonymous inner class.

(ArithmeticException e) {Throw NewArithmeticException ("Denominator cannot be 0"); }finally{ //string modification is invalid, in fact it is equivalent to a local variablemsg = "fail, finally"; returnMsg//The direct return value does not throw an exception when entering the catch block } //return msg; }}OutputBase type Mod1 () =-1 String Type mod2 ()finally2, throw an exception, there are two ways: use throws to specify the exception, used on the method, you can use t

outside the function are global variables, such as $x and $y.Then to use them inside the function, you must use the Global keyword to declare that these two things are global variables before they can be used, otherwise the use of the OH.This must be remembered, because it is very useful, because we often need to use global variables when writing programs with functions.Let's take another look at the code: function myTest () { static$x=0; Echo $x ; $x+ +See here we see there is a

form to define the types of inputs.Then when the user clicks the Submit button, the form submits all the contents of the form to another page.So how do you know which page to submit the form to, and note that the page is written in the form's properties.name= "Input" action= "html_form_action.php" method = "Get" >That's it, action this property is written by the user click on the Submit button, the form of the data submitted to the page, this PHP file will usually be sent over the form of dat

; fastcgi_pass18.18.23.111:9000; #php服务器ip地址. fastcgi_indexindex.php; fastcgi_paramscript_filename/scripts$ fastcgi_script_name;include fastcgi.conf;} }PHP Script Storage location:# TAR-ZXVF Wordpress-4.9.4-zh_cn.tar.gz-c/usr/local/nginx/html/#chown-R nginx/usr/local/nginx/wordpress6.mysql configuration:Mysql> CREATE DATABASE wordpress;mysql> create user ' blog ' @ '% ' identified by ' 123 ';mysql> grant all privileges on wordpress.* to ' blog ' @ '% ';mysql> flush privileges;Browser access:http

. Thread (target=showthreads,name= ' showthreads ', args= (E,)). Start () and not e.wait (1): # Sever console exit Mode cmd = input (' > Gt;> '). Strip () if cmd = = ' Quit ': Cs.stop () e.wait (3) break　　Operation Result:#服务端 ~~~~~~~~~~~~~~~~~~~~>>> [17:26:14] [show_client,7824] {(' 127.0.0.1 ', 7517): 　　#客户端1 >>> hello1[17:26:19] [recv,2604] 2017/12/24 17:26:19 127.0.0.1:7517hello1>>> [17:26:25] [recv, 2604] 2017/12/24 17:26:25 127.0.0.1:7539hello2[17:26:37] [recv,2604] [Winerror 10054] The re

, 2],[1, 2, 3]]3. Assigning valuesmyarr[0][1]=5; The value of 5 is passed into the array, overwriting the original value.Description: Myarr[0][1], 0 represents the table row, and 1 represents the table column.------------------------------------------------------------------------------------------------------------Precedence between operators (high-to-low):Arithmetic operator → comparison operator → logical operator → "=" assignment symbolIf the operation of the sibling is done in the left-to-r

=user.class)//user Discard foreign key maintenance rights role to maintain foreign keys//configuration Relationship//name: Name of the intermediate table@JoinTable (name= "Sys_user_role",Name of//joincolumns: foreign key names generated by the party (Role) in the intermediate table//joincolumns Referencedcolumnname: The name of the primary key corresponding to the foreign key generated by the party in the intermediate tablejoincolumns={@JoinColumn (name= "rid", referencedcolumnname= "role_id")},

Public Function Download ($currdir = null) { $file = UrlDecode ($currdir); $file = Iconv (' UTF-8 ', "GB2312", $file); if (!file_exists ($file)) { $this->error ("file does not exist"); } BASENAMECN is a method of common file customization $filename = BASENAMECN (Iconv (' GB2312 ', "UTF-8", $file)); Tell the browser to handle the attachment Header (' content-disposition:attachment;filename= '. $filename); ReadFile ($file);}PHP, thinkPHP5.0 development website fil

generally results in two submissions and is not recommended. Example: -P>inputtype= "Submit"name=""value= "Submit">input type reset button defined for reset -inputtype= "Reset"name=""value= "Reset">P>form>HTML inline frame HTML inline frameThe src= "http://www ..." frameborder= "0" scrolling = "No">iframe>Inline frames are used with a tagThe target property of the A tag can display the linked page directly in the IFRAME of the current page, with the following code:ahref= "01.html"Target= "M

--------------------------------------------------------------------------------------------------- -----------------------------------------get/117 0 (0%) 31 17 96 | 2.10-------------------------------------------------------------------------------------------------------- ------------------------------------Total 117 0 (0%) 2.10 Percentage of the requests completed within given times Name # reqs 50% 66% 75% 80% 90% 95% 98% 99% 100%---- ---------------------------------------------------------