import random import string import jieba from collections import Counter import time ############################################################################### # 本主题通用代码 ############################################################################### class Crawler: """爬虫父类,为子类爬虫提供基础变量与函数""" def __init__(self) -> None: self.stop_words = self.get_stop_words() # 一共有三个可以切换的数据源，来自三个不同的网站 self.data_source_1 = [ 'https://data.tpdc.ac.cn/zh-hans/data/4a68ebac-571f-4860-82b3-32d397b2ff59', 'https://data.tpdc.ac.cn/zh-hans/data/19838f9a-9672-46d5-bd98-ca56973eb5fa', 'https://data.tpdc.ac.cn/zh-hans/data/39018cd4-a3aa-4888-9a07-7316b52aefbc', 'https://data.tpdc.ac.cn/zh-hans/data/12191fa5-2818-4557-b665-dbae88e557a4', 'https://data.tpdc.ac.cn/zh-hans/data/5296105f-f1b6-4296-b2ee-8ddb0945d017', 'https://data.tpdc.ac.cn/zh-hans/data/5c6b66b6-2699-4664-9024-0bfc4d7b6800', 'https://data.tpdc.ac.cn/zh-hans/data/c4df7e12-ec56-4078-aebb-fb1b142ae622', 'https://data.tpdc.ac.cn/zh-hans/data/27f4e535-16f8-47ae-be83-499cdf61f522', 'https://data.tpdc.ac.cn/zh-hans/data/689ab245-cc98-440d-91d5-9784beb0a675', 'https://data.tpdc.ac.cn/zh-hans/data/dc672fe7-7b00-4626-a9d5-8a0e00d791c3' ] self.data_source_2 = [ f'https://wen.lzep.cn/wen/186{i}.html' for i in range(100, 130) ] self.data_source_3 = [ f'https://www.gutenberg.org/cache/epub/73208/pg73{i}.txt' for i in range(200, 210) ] def get_stop_words(self) -> list: """返回常用停用词列表""" # 创建停用词列表 stop_words = [ 'a', 'able', 'about', 'across', 'after', 'all', 'almost', 'also', 'am', 'among', 'an', 'and', 'any', 'are', 'as', 'at', 'be', 'because', 'been', 'but', 'by', 'can', 'cannot', 'could', 'dear', 'did', 'do', 'does', 'either', 'else', 'ever', 'every', 'for', 'from', 'get', 'got', 'had', 'has', 'have', 'he', 'her', 'hers', 'him', 'his', 'how', 'however', 'i', 'if', 'in', 'into', 'is', 'it', 'its', 'just', 'least', 'let', 'like', 'likely', 'may', 'me', 'might', 'most', 'must', 'my', 'neither', 'no', 'nor', 'not', 'of', 'off', 'often', 'on', 'only', 'or', 'other', 'our', 'own', 'rather', 'said', 'say', 'says', 'she', 'should', 'since', 'so', 'some', 'than', 'that', 'the', 'their', 'them', 'then', 'there', 'these', 'they', 'this', 'tis', 'to', 'too', 'twas', 'us', 'wants', 'was', 'we', 'were', 'what', 'when', 'where', 'which', 'while', 'who', 'whom', 'why', 'will', 'with', 'would', 'yet', 'you', 'your', '的', '是', '一些', '将', '它们', '这个', '用于', '包含', '用于', '示例' ] # 将小写字母添加到停用词列表中 stop_words.extend(list(string.ascii_lowercase)) return stop_words def get_headers(self) -> dict: """返回标头""" agent_list = [ "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:87.0) Gecko/20100101 \ Firefox/87.0", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, li\ ke Gecko) Chrome/65.0.3314.0 Safari/537.36 SE 2.X MetaSr 1.0", 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHT\ ML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0', "Mozilla/5.0 (Linux; Android 7.0; SM-G950U Build/NRD90M) AppleWebK\ it/537.36 (KHTML, like Gecko) Chrome/62.0.3202.84 Mobile Safari/53\ 7.36", "Mozilla/5.0 (Linux; Android 8.0.0; SM-G965U Build/R16NW) AppleWeb\ Kit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.111 Mobile Safari/\ 537.36", "Mozilla/5.0 (Linux; Android 8.1.0; SM-T837A) AppleWebKit/537.36 (\ KHTML, like Gecko) Chrome/70.0.3538.80 Safari/537.36", "Mozilla/5.0 (Linux; U; en-us; KFAPWI Build/JDQ39) AppleWebKit/535\ .19 (KHTML, like Gecko) Silk/3.13 Safari/535.19 Silk-Accelerated=t\ rue", "Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia \ 550) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mob\ ile Safari/537.36 Edge/14.14263", "Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia \ 950) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mob\ ile Safari/537.36 Edge/14.14263", "Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/\ 537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.36", "Mozilla/5.0 (Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36\ (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.36", "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 10 Build/MOB31T) AppleWe\ bKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36", "Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWeb\ Kit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.\ 36", "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKi\ t/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.36\ ", "Mozilla/5.0 (Linux; Android 8.0.0; Nexus 5X Build/OPR4.170623.006\ ) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile S\ afari/537.36", ] headers = { "user_agent": random.choice(agent_list), } return headers def get_freqs(self, content: str) -> list[tuple[any, int]]: """获取中文文本content的词频""" # 分词 words = jieba.cut(content) word_freqs = Counter() for word in words: if word not in self.stop_words: word_freqs[word] += 1 word_freqs = word_freqs.most_common(10) return word_freqs def print_freqs(self, word_freqs: list[tuple[any, int]]) -> None: """打印词频""" cnt = 1 for keyword, freq in word_freqs: if len(keyword) > 1: print(f"{keyword}: {freq}") cnt += 1 if cnt > 10: return