Programmer Think

The topic in the previous section is applicable to the sensor data transmission of robots. The communication is generally a single item, which defines the sending or receiving of a node. For example, A: what's the weather like today, B: today's temperature is 20 degrees and there is light rain. The nodes are divided into server-side and clien ...

1, Common commands for keys keys * View all current key exists key Judge a key Does it exist type key View your key What type is it del key Delete the specified key data unlink key according to value Select non blocking delete to delete only keys from keyspace If the metadata is deleted, the real deletion will be carried out in subsequent asyn ...

Monotonous stack Monotone: therefore, the data stored in the monotone stack should be orderly, so the monotone stack is also divided into monotone increasing stack and monotone decreasing stack. Monotonically increasing stack: monotonically increasing stack is from the bottom of the stack to the top of the stack, and the data is from ...

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1. Construction type of Jenkins project There are many types of automatic construction projects in Jenkins, including the following three types: FreeStyle ProjectMaven ProjectPipeline Project In fact, each type of construction can complete the same construction process and results, but there are differences in operation mode and flexib ...

Due to the development needs, add the fan attention module   In the relationship of friends' attention, there are mainly the above three states, namely: My fans My follow mutual The design idea is as follows: General idea: we use zset in redis to complete the whole function. The reason is that zset has the functions of sorting (we should ...

1. Internal class overview (1) Inner class: the inner part of a class is completely nested with another structure. Those nested are called inner classes, and those nested with other classes are called outer classes. Internal class: the fifth largest member of our class; Five members: attribute, method, constructor, code block and internal ...

Python learning (2) list The list consists of a series of elements arranged in a specific order. The list can store almost all elements such as letters, numbers and strings. There is no relationship between the elements. The list is somewhat similar to a one-dimensional array. In Python, lists are represented by square brackets [] and el ...

1, Variable 1. Overview of variables 1.1 what are variables Vernacular: a variable is a box of things. Popular: variables are containers for storing data. We get the data through the variable name, and even the data can be modified. 1.2 storage of variables in memory Essence: a variable is a piece of space applied by a program in mem ...

References in LaTeX BibLaTeX This lecture mainly explains the method of using BibLaTeX tool to typeset references in LaTeX. Its basic idea is still "one-time management, multiple use". 1, Introduction These files are compiled by the reference files of TEX and libibex macro. These files are a kind of reference files written by t ...