Tag：Pattern
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Time：2020-7-15
This note is excerpted from: https://www.cnblogs.com/PatrickLiu/p/7640873.html Record the learning process for future reference. 1、 Introduction Many people say that the prototype design pattern can save the memory of the machine. They say that the copied object is a copy of the prototype and will not use memory. I don’t think it’s right, because every […]
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Time：2020-7-15
Today, we encountered a magical win10 networking problem in VMware. All kinds of troubles were solved finally. Here is a record: The environment is as follows: Physical machine: win10 home x64 Virtual machine platform: wmware 15. X Virtual machine: win10 enterprise x64 Networking mode: Nat The running water is too long. Let’s divide it […]
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Time：2020-7-14
Win10 has its own virtual machine hyper-v. for those with low requirements for virtual machines and a small number of them, you can simply use Hyper-V to quickly build a virtual machine. Step 1: start and close the windows program and start hyper-v Step 2: prepare the system image to be installed. Select the new […]
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Time：2020-7-11
scene After changing the. Gradle directory of Android studio from the default C disk to another directory, the new app prompts: Could not download gradle.jar:No cacahed version available for offline mode Note: Blog:https://blog.csdn.net/badao_liumang_qizhi Official accountDomineering procedural apeGet programming related e-books, tutorial push and free download. realization This is because the gradle required by […]
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Time：2020-7-10
1、 What is it Master slave replication: after the host data is updated, it is automatically synchronized to the master / slave mechanism of the standby machine according to the configuration and policy. The master mainly writes and the slave mainly reads 2、 What can I do Read write separate disaster recovery backup 3、 How […]
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Time：2020-7-10
Many users will update the system as soon as it can be updated. However, many users will fail to update, which will also lead to the failure to enter the security mode. How to solve this problem? Let’s have a look. What to do if win10 fails to update, can’t boot or enter safe mode […]
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Time：2020-7-7
This paper summarizes the speeches at the graphql summit in 2017, and elaborates on the topics of caching, tracing, pattern splicing and the future development of graphql. Facebook has been open source graphql for more than two years. Over the past two years, communities have multiplied and thousands of companies have used graphql in their […]
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Time：2020-7-7
In the terminal, the VIM command can be used to directly edit the file content. VIM, also known as VI. VIM has three modes: command mode, input mode and bottom line command mode. Command mode VIM file name enters command mode. VIM can also be written as VI. If […]
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Time：2020-7-6
1 docker network 1.1 INTRODUCTION Dokcer provides communication between containers by using Linux bridge. The purpose of docker 0 bridge interface is to facilitate docker management. When the docker daemon is started, you need to do the following: If docker0 does not exist, create Search for an IP segment that does not conflict with the […]
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Time：2020-7-6
1、 Responsibility chain model The chain of responsibility pattern is a behavior pattern, which creates an object chain of receivers for a request. In this way, it avoids the situation that a request links multiple receivers. The external decoupling is similar to the one-way linked list structure. advantage: 1. Reduce coupling. It decouples the sender […]
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Time：2020-7-6
Official website http://www.hzhcontrols.com premise Has been in the industry for 7,8 years, has always wanted to do a set of beautiful custom controls, so there is a series of articles. GitHub：https://github.com/kwwwvagaa/NetWinformControl Code cloud: https://gitee.com/kwwwvagaa/net_ winform_ custom_ control.git If you think the writing is OK, please click a star to support it Welcome to discuss: Penguins […]
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Time：2020-7-4
The direction of this in function Who is this in ordinary functions? — window Object. Who is this in the method? — the current instance object Who is this in timer method? — window Who is this in the constructor? — instance object Who is this in the prototype object method? — instance object […]
