利用wordcloud生成雲圖

最近學習了Python的語法,寫了個生成雲圖的小demo .

代碼在Jupyter Notebook上運行 
安裝執行python -m pip install –upgrade pip 
python -m pip install jupyter 

首先讀取文本 
filename = "E:\codeStyle.txt"
with open(filename,encoding='utf-8') as f: 
    mytext = f.read()

經過jieba分詞 
import jieba 
mytext = "".join(jieba.cut(mytext))

接下來就是用wordcloud生成雲圖了 

from wordcloud import WordCloud
import imageio
from os import path
#path.join(path.dirname(__file__),"timg.jpg")
trump_coloring = imageio.imread(path.join(path.abspath('.'),"E:\\timg.jpg"))
wordcloud = WordCloud(font_path="E:\\simsun.ttf",
                      margin=5,
                      width=1800,
                      height=800,
                      background_color="white", 
                      max_words=300, 
                      mask=trump_coloring,
                      max_font_size=40, 
                      random_state=42).generate(mytext)
import matplotlib.pyplot as plt
#%pylab inline  這行會報提示"Populating the interactive namespace from numpy and matplotlib"
plt.imshow(wordcloud, interpolation='bilinear')
wordcloud.to_file('E:\\output.png')
plt.axis("off")
plt.show()

這裏面有幾個坑 
1:必須是實際存在的.py文件，若是在命令行執行，則會引起異常NameError: name file is not defined；應該結合os.path.abspath()使用 
2:若是報相似」ImportError: No module named scipy.misc」這樣的異常,就用pip安裝對應的組件 
3.默認字體不支持中文,咱們須要本身下載字體放到當前目錄