Learning to be good at thinking, thinking, thinking.

设备 基础 曝光(核心三要素最终决定了成像的明暗程度) 光圈 镜头的通光量大小 侧重于景深 第二调的参数 常用光圈 静物特写： F1.2-2 静态人物： F1.2-4 风景照： F8-11 物抓拍： F5.6-11 (f8左右是很多单反镜头设计时候的最佳光圈，一般都能获得不错的画质) ... Read More

We talk every day, and we spend most of our life talking, communicating with people, we can see the importance of expression, so how to express and accurately convey ourselves has become a subject, this is an article related to this topic, which is also my study note and summary. What does it mean to speak professionally? 99% of people will te... Read More

What’s Cloud Computing? Cloud computing is the practice of using network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. On-Premise Cloud-Providers Different cloud system architectures include: Multi-cloud Hybrid cloud Single cloud Public cloud P... Read More

What is SDLC Software Development and Management Models of Software Engineering Plan Design Build Test Release Monitor Waterfall model Requirements Design Implementation Verification Maintenance Incremental build model Spiral model Agile model The implementation of the agile model mainly includes SCRUM, XP (Extr... Read More

This cheat sheet looks at many annotations that a Java developer should know if they want to use Java, Spring Framework, SpringBoot, Lombok, Swagger and so on. It covers the most frequently used and perhaps the most important annotations. JAVA Standard (Built-in from java.lang.*) @Inherited @Target @Documented @... Read More

Communication is something we repeat every day. Therefore, how to communicate quickly and effectively, and convey your point of view to the other party has become an extremely important topic. The method I want to talk about today is PREP framework. PREP Framework PREP stands for Point, Reason, Example, Point, this method is recommended by Toa... Read More

An OGSM framework is a business planning tool that helps organizations, teams and individuals define and link their long-term visions to short-term and medium-term goals and activities. OGSM Framework OGSM stands for Objective, Goals, Strategies, Measures, it’s a straightforward tool you can use to help you put your corporate vision or strateg... Read More

There are some configuration folders for startup item in macOS. Path Type Scope Description ~/Library/Preferences Folder One User Launch items under LoginHook key ~/Library/LaunchAgents Folder One User Launch agents for a specific user ... Read More

How to interview a developer? This is a very common problem. Different people have different criteria for judging. Here is a mathematical method for me to score a developer quantitatively, so that we can roughly compare the quality of different developers based on the scores. Quantitative Table Item Remark Weight (1-... Read More

Here is a handbook to help us better understanding algorithm. Program = Data Structure (DS) + Algorithm Algorithm Analysis It’s very common for programmers to compare their programs or algorithms with one another. When two programs solve the same problem but look different, is one program better than the other? Analysis Dimensions Time ... Read More