Github下载链接：https://github.com/nikhilkumarsingh/wordcloud-example
youtube视频链接：https://www.youtube.com/watch?v=95p3cVkqYHQ
What is a wordcloud?
什么是文字云图?
An image composed of words used in a particular text or subject, in which the size of each word indicates its frequency or importance.
由在特定文本或主题中使用的单词组成的图像，其中每个单词的大小表示其频率或重要性。
Installation
安装
Install wordcloud using a simple pip command.
使用简单的pip命令安装wordcloud。
pip install wordcloud
wikipedia library is used for extracting wikipedia articles on any given topic. Install it using this pip command:
*库用于提取有关任何给定主题的*文章。使用以下pip命令安装它：
pip install wikipedia
Usage
Run python script as:
用法
以如下方式运行python脚本：
python mywc.py <query>
For example:
例如：
python mywc.py China
will create wordcloud for the topic ‘china’ which looks like this:
将为主题“China”创建wordcloud，如下所示：
program：
程序：
import sys
from os import path
import numpy as np
from PIL import Image
import wikipedia
from wordcloud import WordCloud, STOPWORDS
# get path to script's directory
currdir = path.dirname(__file__)
def get_wiki(query):
# get best matching title for given query
title = wikipedia.search(query)[0]
# get wikipedia page for selected title
page = wikipedia.page(title)
return page.content
def create_wordcloud(text):
# create numpy araay for wordcloud mask image
mask = np.array(Image.open(path.join(currdir, "cloud.png")))
# create set of stopwords
stopwords = set(STOPWORDS)
# create wordcloud object
wc = WordCloud(background_color="white",
max_words=200,
mask=mask,
stopwords=stopwords)
# generate wordcloud
wc.generate(text)
# save wordcloud
wc.to_file(path.join(currdir, "wc.png"))
if __name__ == "__main__":
# get query
query = sys.argv[1]
# get text for given query
text = get_wiki(query)
# generate wordcloud
create_wordcloud(text)