python 生成簡單的詞云

frommatplotlibimportpyplot

fromwordcloudimportwordcloud,imagecolorgenerator
importjieba,pymysql
fromscipy.miscimportimread # 這是乙個處理影象的函式
conn = pymysql.connect(
host ='127.0.0.1',
port = 3306,
database ='learn',
user ='root',
password ='root',
charset ='utf8')
cursor = conn.cursor()
sql ="select name from beijing"cursor.execute(sql)
results = cursor.fetchall()
rets =''forretinresults:
# print (ret)
try:
rets += str(ret[0])
# print(rets)
except:
continue# 開始拼接字串
jieba.add_word('python爬蟲工程師')
jieba.add_word('python開發工程師')
jieba.add_word('python全棧工程師')
result = jieba.cut(rets, cut_all = false)
result ="/".join(result)
# 雲圖渲染
wc = wordcloud(background_color='white', # 背景顏色
max_words=1000, # 最大詞數
mask=back_color, # 以該引數值作圖繪製詞云，這個引數不為空時，width和height會被忽略
max_font_size=100, # 顯示字型的最大值
font_path="msyh.ttc", # 解決顯示口字型亂碼問題，可進入c:/windows/fonts/目錄更換字型
random_state=42, # 為每個詞返回乙個pil顏色
)wc.generate(result)
# 基於彩色影象生成相應彩色
image_colors = imagecolorgenerator(back_color)
# 數學渲染
pyplot.axis('off')# 關閉x,y軸
pyplot.imshow(wc) # 將雲圖新增到中渲染
pyplot.show()# 顯示

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