第四次python作业

习题一

　　要求：1.初始化start_day，end_day两个日期

　　　　　　from datetime import datetime

　　　　　　start_day=datetime(2019,4,1)

　　　　　　end_day=datetime(2019,4,30)

　　　　　　其它时间数据生成要用datetime或date模块的方法编程实现

　　　　　　2.不能使用calendar模块生成

代码：

from datetime import *

start_day=datetime(2019,6,1)
end_day=datetime(2019,6,30)
day=end_day-start_day#记总天数
day1 = day.days+1
print(start_day.strftime('\t\t\t%Y/%m'))#输出年份与月份
print("周日\t周一\t周二\t周三\t周四\t周五\t周六")

first_day=start_day.weekday()#第一日的是周几
count=0#计是否换行数
space=0#计空格数

#第一天前面的空格数
while space <= first_day:
    space += 1 #空格数控制格式
    # print("\t", end="")
    # count += 1 #计换行数控制格式

that_day = 1#计第一天为一号
while that_day <= day1:#显示每天
        print(that_day,end="\t")
        that_day += 1
        count += 1
        if (count % 7 == 0):#每计七个数进行换行
            print("\n")

 

 

 

设计题2：

1.参考“三国演义”词频统计程序，实现对红楼梦出场人物的频次统计。
2.（可选）
将红楼梦出场人物的频次统计结果用词云显示。

代码：

import jieba
excludes = {"什么","一个","我们","那里","你们","如今","说道","知道","起来","这里","出来","他们","众人","自己",
            "奶奶","一面","只见","怎么","姑娘","两个","没有","不是","不知","这个","听见","这样","进来","这是",
            "告诉","就是","咱们","东西","回来","只是","大家","老爷","只得","丫头","这些","不敢","出去","所以",
            "不过","的话","不好","姐姐"}
txt = open("红楼梦.txt", "r", encoding='utf8').read() #打开文件并定义
words = jieba.lcut(txt)
counts = {}  #定义字典
for word in words:
    if len(word) == 1:
        continue
    elif (word == "宝玉" or word == "宝玉道"or word == "宝二爷"
          or word == "混世魔王"or word == "怡红公子"or word == "绛洞花主"
          or word == "无事忙"or word == "遮天大王"or word == "富贵闲人"or word =="贾宝玉"):
        rword = "贾宝玉"
    elif word == "黛玉" or word == "黛玉道"or word =="林黛玉":
        rword = "林黛玉"
    elif word == "宝钗" or word == "宝钗道"or word =="薛宝钗":
        rword = "薛宝钗"
    elif word == "姨太太" or word == "薛姨妈":
        rword = "薛姨妈"
    elif word == "老祖宗" or word == "老太太"or word == "史太君"or word =="贾母":
        rword = "贾母"   
    elif word == "太太" or word == "二太太":
        rword = "王夫人"    
    elif word == "熙凤" or word == "熙凤道"or word == "凤姐"or word == "凤姐儿"or word == "王熙凤":
        rword = "王熙凤"
    elif word == "平儿" or word == "袭人"or word == "小平":
        rword = "平儿"
    elif word == "探春" or word == "探春道":
        rword = "贾探春"    
    elif word == "晴雯" or word == "勇晴雯"or word == "芙蓉仙子"or word == "病西施":
        rword = "晴雯"
    else:
        rword = word
    counts[rword] = counts.get(rword, 0) + 1  #词汇加入字典
#从字典中删除无用词
for word in excludes:
    del (counts[word])
#字典转换为列表
items = list(counts.items())
#lambda是一个隐函数，是固定写法
items.sort(key=lambda x: x[1], reverse=True)
for i in range(10):  #出现的词频统计
    word, count = items[i]  #将键和值分别赋予列表word和count
    print("{0:<10}{1:>7}".format(word, count))  #0:<10左对齐，宽度10，”>5"右对齐