《三国演义》之人物出场统计

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人物出场设计对词汇的统计。中文文章需要分词才能进行词频统计，这需要用到jieba库。
《三国演义》文本保存为三国演义》.txt,实现代码如下：

#CalThreekingdomsV1.py
import jieba
txt =open("三国演义.txt", "r", encoding = 'utf - 8').read()
words = jieba.lcut(txt)
counts = {}
for word in words:
    if len(word) == 1:#排除单个字符的分词结果
        continue
    else:
        counts[word] = counts.get(word, 0) + 1
items = list(counts.items())
items.sort(key = lambda x:x[1], reverse=True)
for i in range (15):
    word, count = items[i]
    print("{0:<10}{1:>5}".format(word, count))

排除一些与人物名字无关的词汇，优化代码如下：

import jieba
excludes = {"将军","却说","荆州","二人","不可","不能","如此"}
txt = open("三国演义.txt", "r", encoding='utf-8').read()
words  = jieba.lcut(txt)
counts = {}
for word in words:
    if len(word) == 1:
        continue
    elif word == "诸葛亮" or word == "孔明曰":
        rword = "孔明"
    elif word == "关公" or word == "云长":
        rword = "关羽"
    elif word == "玄德" or word == "玄德曰":
        rword = "刘备"
    elif word == "孟德" or word == "丞相":
        rword = "曹操"
    else:
        rword = word
    counts[rword] = counts.get(rword,0) + 1
for word in excludes:
    del counts[word]
items = list(counts.items())
items.sort(key=lambda x:x[1], reverse=True) 
for i in range(10):
    word, count = items[i]
    print ("{0:<10}{1:>5}".format(word, count))