【1901100083】自学训练营学习15群 DAY6

exercises/1901100083/1001S02E05_array.py/1001S02E05_array.py

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+Sample_list = [0,1,2,3,4,5,6,7,8,9]
+
+# 1. 对列表 [0,1,2,3,4,5,6,7,8,9] 翻转
+Sample_list = [0,1,2,3,4,5,6,7,8,9]
+reversed_list = Sample_list[::-1]
+print('列表翻转 ==>', reversed_list)
+
+# 2. 翻转后的列表拼接成字符串
+joined_str = ''.join([str(i) for i in reversed_list])
+print('翻转后的列表拼接成字符串 ==>', joined_str)
+
+# 3. 用字符串切片的方式取出第三到第八个字符（包含第三和第八个字符）
+sliced_str = joined_str[2:8]
+print('用字符串切片的方式取出第三到第八个字符 ==>', sliced_str)
+
+# 4. 获得的字符串进行翻转
+reversed_str = sliced_str[::-1]
+print('字符串翻转 ==>', reversed_str)
+
+# 5. 转换为 int 类型
+int_value = int(reversed_str)
+
+print('转换为 int 类型 ==>', int_value)
+print('转换为 二进制 ==>', bin(int_value))
+print('转换为 八进制 ==>', oct(int_value))
+print('转换为 十六进制 ==>', hex(int_value))

exercises/1901100083/1001S02E05_stats_text.py/1001S02E05_stats_text.py

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+Sample_text = '''
+The Zen of Python, by Tim Peters
+
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+
+
+
+# 1. 使用字典统计字符串样本 text 中各个英文单词出现的次数
+
+elements = Sample_text.split()
+words =[]
+symbols = ',.*-!'
+for element in elements:
+    for symbol in symbols:
+        element = element.replace(symbol,'')
+    if len(element):
+        words.append(element)
+print('正常的单词 ==>', words)
+
+counter = {}
+word_set = set(words)
+for word in word_set:
+    counter[word] = words.count(word)
+print('英文单词出现的次数 ==>', counter)
+
+# 2. 按照出现次数从大到小输出所有单词及出现的次数
+
+print('从大到小输出所有的单词及出现的次数 ==>', sorted(counter.items(), key=lambda x: x[1], reverse=True))
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exercises/1901100083/1001S02E05_string.py/1001S02E05_string.py

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+Sample_text = '''
+The Zen of Python, by Tim Peters
+
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+
+# 1. 将字符串样本里的 better 全部替换成 worse
+
+text = Sample_text.replace('better', 'worse')
+print('将字符串样本里的 better 全部替换成 worse ==>', text)
+
+# 2. 将单词中包含 ea 的单词剔除
+
+words = text.split()
+filtered = []
+for word in words:
+    if word.find('ea') < 0:
+        filtered.append(word)
+print('将单词中包含 ea 的单词剔除 ==>', filtered)
+
+# 3. 进行大小写翻转
+
+swapcased = [i.swapcase() for i in filtered]
+print('进行大小写翻转 ==>', swapcased)
+
+# 4. 单词按 a_z 升序排列
+
+print('单词按 a_z 升序排列 ==>', sorted(swapcased))
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exercises/1901100083/1001S02E06_stats_word.py/1001S02E06_stats_word.py

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+# 统计参数中每个英文单词出现的次数
+def stats_text_en(text):
+    elements = text.split()
+    words = []
+    symbols = ',.*-!'
+    for element in elements:
+        for symbol in symbols:
+            element = element.replace(symbol, '')
+        if len(element):
+            words.append(element)
+    counter = {}
+    word_set = set(words)
+
+    for word in word_set:
+        counter[word] = words.count(word)
+    return sorted(counter.items(), key=lambda x: x[1], reverse=True)   
+
+
+# 统计参数中每个中文汉字出现的次数
+def stats_text_cn(text):
+    cn_characters = []
+    for character in text:
+        if '\u4e00' <= character <= '\u9fff':
+            cn_characters.append(character)
+    counter = {}
+    cn_character_set = set(cn_characters)
+    for character in cn_character_set:
+        counter[character] = cn_characters.count(character)
+    return sorted(counter.items(), key=lambda x: x[1], reverse=True)
+
+
+en_text = '''
+The Zen of Python, by Tim Peters
+
+Beautiful is better than ugly.
+Explicit is better than implicit.
+Simple is better than complex.
+Complex is better than complicated.
+Flat is better than nested.
+Sparse is better than dense.
+Readability counts.
+Special cases aren't special enough to break the rules.
+Although practicality beats purity.
+Errors should never pass silently.
+Unless explicitly silenced.
+In the face of ambxiguity, refuse the temptation to guess.
+There should be one-- and preferably only one --obvious way to do it.
+Although that way may not be obvious at first unless you're Dutch.
+Now is better than never.
+Although never is often better than *right* now.
+If the implementation is hard to explain, it's a bad idea.
+If the implementation is easy to explain, it may be a good idea.
+Namespaces are one honking great idea -- let's do more of those!
+'''
+
+cn_text = '''
+Python 之禅 by Tim Peters
+
+优美胜于丑陋
+明了胜于晦涩
+简洁胜于复杂
+复杂胜于凌乱
+扁平胜于嵌套
+间隔胜于紧凑
+可读性很重要
+即便假借特里的实用性之名，也不可违背这些规则
+不要包容所有错误，除非你确定需要这样做
+当存在多种可能，不要尝试去猜测
+而是尽量找一种，最好是唯一一种明显的解决方案
+虽然这并不容易，因为你不是 Python 之父
+做也许好过不做，但不假思索就动手还不如不做
+。。。
+'''
+
+
+
+# 搜索 __name__ == __main__
+if __name__ == '__main__':
+    en_result = stats_text_en(en_text)
+    cn_result = stats_text_cn(cn_text)
+    print('统计参数中每个英文单词出现的次数 ==>\n', en_result)
+    print('统计参数中每个中文汉字出现的次数 ==>\n', cn_result)
+

exercises/1901100083/d07 work/main.py

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+from mymodule import stats_word
+
+sample_text = '''
+愚公移⼭
+
+太⾏，王屋⼆山的北面，住了一個九十歲的⽼翁，名叫愚公。⼆山佔地廣闊，擋住去路，使他和家人往來極為不便。
+一天，愚公召集家人說：「讓我們各盡其力，剷平二山，開條道路，直通豫州，你們認為怎樣？」
+大家都異口同聲贊成，只有他的妻子表示懷疑，並說：「你連開鑿一個小丘的力量都沒有，怎可能剷平太行、王屋二山呢？況且，鑿出的土石又丟到哪裏去呢？」
+大家都熱烈地說：「把土石丟進渤海裏。」
+於是愚公就和兒孫，一起開挖土，把土石搬運到渤海去。
+愚公的鄰居是個寡婦，有個兒子八歲也興致勃勃地走來幫忙。
+寒來暑往，他們要⼀年才能往返渤海一次。
+住在黃河河畔的智叟，看見他們這樣辛苦，取笑愚公說：「你不是很愚蠢嗎？你已⼀把年紀了，就是用盡你的氣力，也不能挖去山的一角呢？」
+愚公歎息道：「你有這樣的成見，是不會明白的。你比那寡婦的小兒子還不如呢！就算我死了，還有我的兒子，我的孫子，我的曾孫子，他們一直傳下去。而這二山是不會加大的，總有
+一天，我們會把它們剷平。」
+智叟聽了，無話可說：
+二山的守護神被愚公的堅毅精神嚇倒，便把此事奏知天帝。天帝佩服愚公的精神，就命兩位大力神揹走二山。
+
+How The Foolish Old Man Moved Mountains
+Yugong was a ninety-year-old man who lived at the north of two high mountains, Mount Taixing and Mount Wangwu.
+Stretching over a wide expanse of land, the mountains blocked yugong’s way making it inconvenient for him and his family to get around.
+One day yugong gathered his family together and said,”Let’s do our best to level these two mountains. We shall open a road that leads
+to Yuzhou. What do you think?”
+All but his wife agreed with him.
+“You don’t have the strength to cut even a small mound,” muttered his wife. “How on earth do you suppose you can level Mount Taixin
+and Mount Wanwu? Moreover, where will all the earth and rubble go?”
+“Dump them into the Sea of Bohai!” said everyone.
+So Yugong, his sons, and his grandsons started to break up rocks and remove the earth. They transported the earth and rubble to the Sea
+of Bohai.
+Now Yugong’s neighbour was a widow who had an only child eight years old. Evening the young boy offered his help eagerly.
+Summer went by and winter came. It took Yugong and his crew a full year to travel back and forth once.
+On the bank of the Yellow River dwelled an old man much respected for his wisdom. When he saw their back-breaking labour, he ridiculed
+Yugong saying,”Aren’t you foolish, my friend? You are very old now, and with whatever remains of your waning strength, you won’t be able
+to remove even a corner of the mountain.”
+Yugong uttered a sigh and said,”A biased person like you will never understand. You can’t even compare with the widow’s little boy!”
+“Even if I were dead, there will still be my children, my grandchildren, my great grandchildren, my great great grandchildren.
+They descendants will go on forever. But these mountains will not grow any taler. We shall level them one day!” he declared with confidence.
+The wise old man was totally silenced.
+When the guardian gods of the mountains saw how determined Yugong and his crew were, they were struck with fear and reported the incident to the Emperor of Heavens.
+Filled with admiration for Yugong, the Emperor of Heavens ordered two mighty gods to carry the mountains away.
+'''
+
+
+result = stats_word.stats_text(sample_text)
+print('统计结果 ==>', result)