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<> mathematical functions, such as ln, sin, tan, etc., these functions do not necessarily belong to any one object, so it feels better to call them from the class, such as defining a mathematical function class math, calling math::sin(; If you have to use a non-static function, you must:
math math;
Lines are lines, but they are not happy: it is not pleasant to introduce the construction of an object and the destruction of an object for the sake of a mathematical function that is fundamentally stateless to store. And now that you have objects, you have to carefully define copy constructors, copy assignment operators, etc., which is obviously not suitable for some purely algorithmic things.
4) In short, from the perspective of ooa ood, all functions that do not need to be instantiated to have a definite way of behaving should be designed to be static.
These are just some basic considerations and are not absolute. There is only one thing about the absolute thing: "static functions do not need to be instantiated to be called, and non-static members cannot be called or manipulated".
With this in mind, it's easier to make decisions about when you need it and when it's appropriate for you in actual programming.
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lol Blocked account query The first one is Or find League of Legends customer service to inquire and log in to the client to go to the area where you are banned After logging in, he will be displayed.
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Go to the client and log in.
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Tools required: computer, browser.
2. The query is in the upper right corner of the web page, as shown in the figure below;
3. Then click the "Login" button to log in with the sealed;
4. Then select the server where it is located, after selecting, the system will automatically generate the area;
5. Click the "Query" button. Finally, you can check the specific unblocking time.
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League of Legends ban query can be viewed on the official website of League of Legends.
How to the imitation boy:
2.Open the official website of lol, click on the autonomous system, and check the number of the member.
3.Log in to the game account.
4.View the system ban penalty.
5.Select a server or role, and click Block Account Query.
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1. Enter the League of Legends Closure Inquiry System**; Log in to the QQ number you want to query, select the server and role, and click on the blocked account to query. If you are blocked, there will be a time for unblocking and the reason for the ban. If you haven't been banned, a pop-up message will pop up that you have behaved well and have never been blocked.
2. Open a browser and search for "League of Legends" to enter the official website. Click on "Self-Service System" and select "Closure Query". Select the server and role name according to the prompts, and after clicking Query, the system will prompt the reason for the account ban and the time of unblocking.
3. First of all, open the browser on the computer and search for "Tencent Game Security Center". Then click on the "Tencent Game Security Center" official under the search results**. After entering, click on "Penalty Query" in the interface.
Clicking on it will prompt "Querying" and need to wait for a few seconds.
4. Self-service system". Then select "Hall of Order", as shown below. After entering the interface of the Hall of Order, pull down the mouse and find the "Closure Inquiry System".
After logging in, then "Select Region and Character Name" in the option box, and then click Query, so that you can see the League of Legends ban time and the reason for the ban.
5. There are many ways to query: Query method 1: Log in to the region where the League of Legends is located, and when you select the region to enter, you will be prompted that you have been banned, and the ban time will be until x year, x month, x day.
Query method 2: Log in to the official website of lol, and there is a closed account query option in the upper right corner.
6. First of all, our first step is to open our computer, then to keep our computer in a state of networking, then we open the browser, and finally we type "League of Legends" in the browser, and click on its official website in the drop-down. Then we click on the first one on the interface that appears. Send a god.
The Q game assistant in the upper right corner of the official website has a check.
It can be farmed all year round.
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Christmas in Egypt was also introduced, so their festive atmosphere was not strong.