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right value of the equal sign defname (self, newName): Self.__name=Newnametiger= Persion ('haha')Print(tiger.name) tiger.name='Dede'Print(Tiger.name)#Property Application example, supermarket fruit suddenly began to call 50 percentclassGoods:discount= 0.5def __init__(self, Name, price): Self.name=name self.__price=Price @propertydefPrice (self):returnSelf.__price*Goods.discountapple= Goods ('Apple', 5)Print(Apple.price)#2.5# -------------------------------------------------------------------
#include #include#includeusing namespacestd;classKiwi {Private: intweight; Public: Kiwi (intW): Weight (w) {}~Kiwi () {cout"~kiwi"Endl; } intGetweight () {returnweight;}};voidDeleter (kiwi*x) {cout"deleting"Endl; //if remove below line object is not being delete by smart pointerdelete x;}voiddriven () {shared_ptrNewKiwi ( -), deleter); coutEndl; coutEndl; shared_ptrp; coutEndl; coutEndl; coutEndl; coutEndl;}intMain () {cout"Test Start"Endl; D
The smart pointer contains two kinds of "shared_ptr" and "unique_ptr", because the two kinds of pointers are implemented differently, so the way to pass the deletion is different; "shared_ptr" of the transfer of the deletion (deleter) way is relatively simple, only to add a specific name of the deletion function in the parameters, you can; Note is a single parameter function; The "unique_ptr" is a function template (functions template), so you need
History command: history, history command history [Root @ linux ~] # History [n][Root @ linux ~] # History [-c][Root @ linux ~] # History [-raw] histfilesParameters:N: Number, which ind
In linux, view the history command history. In linux, view history.1. Functions of historyLinux's history command is used to record executed commands. Usage: history [n] n is a number, list the latest n commands-c. Delete All history
The author of this book, Shi jingqian, is an overseas Chinese historian. The original book is in English and the translator is a Chinese PhD student. The translation is quite good. If you do not speak of it, it cannot be seen as a translation. The book is basically written in academic habits, and each section of history comes from credible historical materials. However, the authors and translators can easily read the text. The author's description o
I don't know if there's anything to clean up. A directory history file needs to be cleaned. There will probably be a lot of other places to clean up the history files, which may be used. I spent the past two days writing a script, cleaning more convenient, there will be a large number of historical documents to clean up the words can be used. The commands used in scripts are only Linux, and are not support
If you often use Linux Command lines, using the history (History) command can effectively improve your efficiency. This article describes the 15 Use Cases of the History command. Display timestamp with histtimeformatAfter you execute the history command from the command line, only the serial number of the executed co
Understanding browser history and browser history This is a basic article about history stack Management in browsers. The reason for writing this is that I recently want to study pushState to see what problems will occur when using it to implement SPA. pushState ultimately affects the content in the browser history rec
Thinkphp browsing history implementation method, thinkphp history This article describes how to implement the thinkphp browsing history function and shares it with you for your reference. The implementation method is analyzed as follows: The history browsing function uses the cookie function to record user information
For Terminalor, the history command is not unfamiliar, what!n,!! is more commonly used, and the cmds you hit at the command line is saved by default in/home/$USER/.bash_history (Linux)/users/$USER/.bash_history (MAC).But history doesn't just look like this: You save the command and then you can see the call.Introduce some of the history-related variables to contr
History commands in CentOS: history[Root @ linux ~] # History [n][Root @ linux ~] # History [-c][Root @ linux ~] # History [-raw] histfilesParameters:N: Number, which indicates "List of the nearest n commands!-C: removes all history
Javascript: The difference between history. Go () and history. Back () Window. Location. Reload () ">Window. History. Go (1)">Window. History. Go (-1) ">Window. History. Forward ()">Window. History. Back () "> Backward + refresh
Implementation of WebKit history item management and webkit history itemsAccording to the standard definition, Page manages a Joint Session History, which contains the historical items of each sub-Frame. The logical relationship is as follows:From the above, we can see three layers: Page, Frame, and JS Binding interfaces. The core of page loading is Frame through
Have you forgotten mysql history or mysql history? To view mysql statements, we usually use the show processlist command. However, this command makes sense for statements with a long query time, the statement that can be executed at once cannot be used quickly. So we can only start from the mysql history. To achieve this goal, we need to modify the/etc/my. cnf fi
The history history object in JavaScript contains information about the URL that the user has browsed, referring to the browsing history of the browser as a historical object. Given the need for security, the object receives a lot of restrictions and now only has the following properties and methods left. The history
Bash saves the history of commands used. The history of these commands is stored in the. bash_history file of the user's main directory. Introduction Bash saves the history of commands used. The history of these commands is stored in the. bash_history file in the user's main directory. =================================
View the history command and history command Files have been cleared during production. Which of the following operations can be checked? Use history to view historical commands: $ History | more You can also run the following command to view the history: $ Vi ~ /.
This property returns the and of the number of addresses that are contained under "forward" and "back" two keys. I don't seem to use this property very often, and I don't use it very much. The history object provides three ways to access the history list: History.back () Loads the previous URL in the History list, which is equivalent to pressing the back button
Every command we operate is often recorded by the machine, and some sensitive operation commands are blocked for security purposes.Set the default number of records in Linux:Temporary effect:Export histsize = 5HistoryValid permanently:Echo "Export histseze = 5">/etc/profile./Etc/profile or source/etc/profile // The configuration must take effect.Control history files: variable of the number of historical records in the command lineCat ~ /. Bash_histor
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