Programmer Think

First of all, we need to add a share button in the upper right corner of the original homepage, and then we need to click it to pop up wechat's own function of sharing to friends. At first glance, it seems not difficult. There was no wechat related development experience before, but it took three days to do well. Let's start w ...

First you need to install three packages: #Installation: pip install matplotlib #Installation: pip install jieba #Install pip install wordcloud 1. Make a word cloud of the English alphabet Design sketch: Code implementation: import matplotlib.pyplot as plt import jieba from wordcloud import WordCloud # 1. Read txt text data text = open(r'te ...

First, look at the renderings: Myc order: on behalf of order service Myc user: on behalf of user service Myc car: representative car service ... and so on. Let me briefly talk about the integration steps and key points. 1. Add the following dependencies to the pom of each service. <dependency> <groupId>io.s ...

There are many secondary lists and QQ group demo s on the Internet, but the best one is the one that suits me. I wrote a one that suits me. Record it. In the future, you can use common D + V directly gif chart first The first is data NSArray *data = @[@{ @"title":@"Nothing in the world seem ...

Summary: add a QUndoStack and QUndoView to mainwindows. Add different actions to edit [undo action & redoaction] and view[Undo stack] in the constructor. Note: the undo and redo operations in edit only need to add the response API, and the qt editor will implement them automatically. But the action in view needs to be associated with a slo ...

meaning of the title The tree of $n $nodes can be divided into $\ frac{n}{k} $connection blocks with the size of $k $ Sol First $k $must be a multiple of $n $. Then at the beginning, I thought it was foolish to output all divisors.. But the picture is like this, if $k = 2 $, it is definitely not possible.     Conclusion: if $k $is feasi ...

Vue cli installation and basic use of axios   Vue cli is a very convenient scaffold, which can be installed according to the rookie tutorial Address: http://www.runoob.com/vue2/vue-install.html Just follow the rookie tutorial all the way. If there is no npm or cnpm (Taobao image), please go to the node official website to d ...

Preface Concurrency is an unavoidable topic in Java development.Modern processors are multi-core, and multi-threaded programming is essential for better drying machine performance, so thread security is a required course for every Java Engineer. There are two general ways to address thread security issues: Synchronization: Use the Synchronized ...

Content: Full Permutation implementation Eight queens combined with full arrangement Optimization of eight queens backtracking method by Full Permutation The realization of eight queens by complete backtracking Summary: divide and conquer and recursion 1. Full Permutation implementation Output a 1~n permutation. For ex ...

This is my layout code; <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="@string/welcome" android:id="@+id/TextV ...