词频统计

先打开文档比如walden注意格式

f = open ("D:/aaa\Walden.txt","w")

f.close()

f = open("D:/aaa\Walden(1)","w")

同意大小写

Walden.txt = text lower()

  File "<ipython-input-23-aaab1ce9ca07>", line 1
    Walden.txt = text lower()
                          ^
SyntaxError: invalid syntax

t=t.replace(',','').replace('.','').replace('"','').replace(':','')
t=t.split()
r=collections.Counter(t)
print(r)