Programmer Think

Step 1 download Icoont Alibaba vector map After logging in the website, add the required icon to the library as follows: Then download to local. (Note: the compressed package downloaded by my google browser is empty, and it was successfully downloaded by using other browsers.) It has the following contents: Step 2: crea ...

I'm writing a program in C# that requires repeated access to an image file.In most cases, it will work, but if my computer runs fast, it will try to access the file before attempting to save it back to the file system, throwing an error: "The file is being used by another process." I want to find a solution, but all of my Google s ...

Due to importing other people's projects and changing the version number of gradle, the project always reported an error. Finally, it was found that the problem was in ButterKnife when I looked up the data. Some people had NullPointerException, and my error was as follows: gradle version number classpath  'com.android.tools ...

Java 8 API provides many new functional interfaces to make the work more convenient. Some interfaces are from Google Guava library. Even if you are familiar with these interfaces, it is necessary to see how they are extended to lambda. I. Optional interface 1. Various problems caused by null 1) it is the source of error: NullPointException is t ...

Recently, I learned the Kotlin language recommended by Google for Android development, which was used to try to reconstruct the MVP+Retrofit+Rxjava code before. Here is my reconstructed Kotlin code First add the compile of gradle: dependencies { compile 'io.reactivex.rxjava2:rxjava:2.0.7' compile 'io.reactivex.rxjava2:rx ...

When editing a document, you can quickly change some characters or paragraphs that need to be modified by finding and replacing them. In this article, you will learn how to replace a specified text string in a document with a Word document, picture, or table. The key points of the example are as follows: Replace text in Word with a document R ...

background Due to the strict restrictions on wechat, domain names are inadvertently determined to be induced to share. Therefore, the company decided to investigate a set of stable, fast and high accuracy wechat domain name interception detection query interface. The development team tried Google search for a while and found that they rarely sh ...

With the development of anti crawler, there are not only slider verification, but also point selection verification, graphic verification, Chinese character graphic verification, among which Google's graphic verification and 12306's graphic verification are more well-known, as well as the inverted Chinese character verification. In addition to ...

review Through the content of the previous articles, we have built a simple Web application based on the Flask framework. The code of server.py is as follows from flask import Flask, make_response from flask.views import MethodView app = Flask(__name__) class IndexHandler(MethodView): def get(self): resp = make_response('It is a ...

At present, the data on many pages is dynamically loaded, so using the method of "scrape" to crawl the page can only get the layout code of the page HTML, but not the data. And for novices, it's difficult to use scratch on the road, so use selenium to open the game, and then load the page to get data. Demand: Statis ...