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分析一段文本中的词语

StringCases 允许您挑选出特定的字符串，包括文本中的词语.

    
Wolfram Language code: words = ToLowerCase[StringCases[Import["ExampleData/USConstitution.txt"], WordCharacter..]];
Wolfram Language code: Length[words]
Wolfram Language code: Length[Union[words]]
Wolfram Language code: ListLogPlot[Sort[Last /@ Tally[words]]]
Wolfram Language code: Take[Sort[Reverse /@ Tally[words]], -10]