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The idea is to draw a number of small squares on Canvas. The first step is to realize the method of drawing small squares. First, draw a 10x10 square with a side length of 5, which can be easily completed by using two for loops. 1 for (let i = 0; i < 10; i++) { 2 for (let j = 0; j < 10; j++) { 3 context.fillRect(5 * i, 5 ...

1. Adapter Intent Convert one class interface to another user's interface.       Class Diagram       Implementation Duck and Turkey have different calls. Duck's call calls the quack() method, while Turkey calls the gobble() method. It is required that Turkey's gobble() method be adapted to Duck's quack() method to make Turkey ...

If the article is long, it is suggested to collect it before reading it. Disassembly steps 1. The app forces horizontal display, ignoring the Android: screenorientation = "portait" attribute 2. Screen touch coordinate is changed to horizontal screen. 3. Power on animation screen 4. Startup logo, shutdown and charging animation screen ...

Tuples are another important sequence structure in Python. Similar to lists, tuples are also composed of a series of elements sorted in a specific order. Unlike a list, a list can operate on any element and is a variable sequence, while a tuple is an immutable sequence, that is, the elements in the tuple cannot be modified separately. Tuples c ...

Elastic search version 7.3 Install Chinese word segmentation plug-in The corresponding version of plug-in should be the same as that of elastic search. Download address of plug-in versions https://github.com/medcl/elasticsearch-analysis-ik/releases Install using the elasticsearch native script ./bin/elasticsearch-plugin install https ...