{"id":1167710,"date":"2025-01-15T15:48:38","date_gmt":"2025-01-15T07:48:38","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1167710.html"},"modified":"2025-01-15T15:48:40","modified_gmt":"2025-01-15T07:48:40","slug":"python%e7%88%ac%e8%99%ab%e5%a6%82%e4%bd%95%e5%86%99%e8%ae%ba%e6%96%87","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1167710.html","title":{"rendered":"python\u722c\u866b\u5982\u4f55\u5199\u8bba\u6587"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26065152\/9f0d2c58-3be5-465e-b64c-65d03b10d649.webp\" alt=\"python\u722c\u866b\u5982\u4f55\u5199\u8bba\u6587\" \/><\/p>\n<p><p> <strong>Python\u722c\u866b\u5199\u8bba\u6587\u7684\u6838\u5fc3\u6b65\u9aa4\u5305\u62ec\uff1a\u9009\u62e9\u5408\u9002\u7684\u722c\u866b\u5de5\u5177\u3001\u8bbe\u8ba1\u722c\u866b\u903b\u8f91\u3001\u6570\u636e\u6293\u53d6\u4e0e\u5b58\u50a8\u3001\u6570\u636e\u6e05\u6d17\u4e0e\u5206\u6790\u3001\u8bba\u6587\u64b0\u5199\u4e0e\u7ed3\u679c\u5c55\u793a\u3002<\/strong>\u5176\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u722c\u866b\u5de5\u5177\u662f\u975e\u5e38\u5173\u952e\u7684\u4e00\u6b65\uff0c\u51b3\u5b9a\u4e86\u722c\u866b\u7684\u6548\u7387\u548c\u6548\u679c\u3002\u5e38\u89c1\u7684\u722c\u866b\u5de5\u5177\u5305\u62ecBeautifulSoup\u3001Scrapy\u3001Selenium\u7b49\u3002<strong>\u5728\u64b0\u5199\u8bba\u6587\u65f6\uff0c\u8981\u6ce8\u610f\u6570\u636e\u7684\u5408\u6cd5\u6027\u548c\u4f26\u7406\u95ee\u9898<\/strong>\uff0c\u786e\u4fdd\u6240\u6293\u53d6\u7684\u6570\u636e\u4e0d\u4f1a\u4fb5\u72af\u4ed6\u4eba\u7684\u6743\u76ca\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u9009\u62e9\u5408\u9002\u7684\u722c\u866b\u5de5\u5177<\/h3>\n<\/p>\n<p><p>\u9009\u62e9\u5408\u9002\u7684\u722c\u866b\u5de5\u5177\u662f\u8fdb\u884c\u6570\u636e\u6293\u53d6\u7684\u7b2c\u4e00\u6b65\u3002\u4e0d\u540c\u7684\u5de5\u5177\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u573a\u666f\u548c\u9700\u6c42\u3002<\/p>\n<\/p>\n<p><h4>1\u3001BeautifulSoup<\/h4>\n<\/p>\n<p><p>BeautifulSoup\u662f\u4e00\u4e2aPython\u5e93\uff0c\u53ef\u4ee5\u4eceHTML\u548cXML\u6587\u4ef6\u4e2d\u63d0\u53d6\u6570\u636e\u3002\u5b83\u63d0\u4f9b\u4e86Pythonic\u7684\u6587\u6863\u5bfc\u822a\u3001\u67e5\u627e\u548c\u4fee\u6539\u6587\u6863\u7684\u65b9\u5f0f\u3002BeautifulSoup\u662f\u6784\u5efa\u5728HTML\u89e3\u6790\u5e93\u4e4b\u4e0a\u7684\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ee5\u4e00\u79cd\u76f4\u89c2\u4e14\u6613\u4e8e\u64cd\u4f5c\u7684\u65b9\u5f0f\u5904\u7406HTML\u6587\u6863\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u7b80\u5355\u6613\u7528\uff0c\u9002\u5408\u521d\u5b66\u8005\u3002<\/li>\n<li>\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6587\u6863\u548c\u6559\u7a0b\u3002<\/li>\n<\/ul>\n<p><p><strong>\u52a3\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u89e3\u6790\u901f\u5ea6\u8f83\u6162\uff0c\u4e0d\u9002\u5408\u5927\u89c4\u6a21\u6570\u636e\u6293\u53d6\u3002<\/li>\n<\/ul>\n<p><h4>2\u3001Scrapy<\/h4>\n<\/p>\n<p><p>Scrapy\u662f\u4e00\u4e2a\u5f3a\u5927\u7684Python\u722c\u866b\u6846\u67b6\uff0c\u9002\u7528\u4e8e\u5927\u89c4\u6a21\u7684\u6570\u636e\u6293\u53d6\u548c\u5904\u7406\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u5957\u5b8c\u6574\u7684\u5de5\u5177\u96c6\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u6293\u53d6\u3001\u6570\u636e\u6e05\u6d17\u548c\u6570\u636e\u5b58\u50a8\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u5177\u6709\u9ad8\u6548\u7684\u6293\u53d6\u80fd\u529b\uff0c\u9002\u5408\u5927\u89c4\u6a21\u6570\u636e\u6293\u53d6\u3002<\/li>\n<li>\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6269\u5c55\u548c\u4e2d\u95f4\u4ef6\uff0c\u65b9\u4fbf\u5b9a\u5236\u5316\u3002<\/li>\n<li>\u6709\u5b8c\u5584\u7684\u6587\u6863\u548c\u793e\u533a\u652f\u6301\u3002<\/li>\n<\/ul>\n<p><p><strong>\u52a3\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u5b66\u4e60\u66f2\u7ebf\u8f83\u9661\u5ced\uff0c\u9002\u5408\u6709\u4e00\u5b9a\u7f16\u7a0b\u7ecf\u9a8c\u7684\u7528\u6237\u3002<\/li>\n<\/ul>\n<p><h4>3\u3001Selenium<\/h4>\n<\/p>\n<p><p>Selenium\u662f\u4e00\u4e2a\u81ea\u52a8\u5316\u6d4b\u8bd5\u5de5\u5177\uff0c\u53ef\u4ee5\u63a7\u5236\u6d4f\u89c8\u5668\u7684\u884c\u4e3a\u3002\u5b83\u9002\u7528\u4e8e\u9700\u8981\u6a21\u62df\u7528\u6237\u64cd\u4f5c\u7684\u573a\u666f\uff0c\u5982\u52a8\u6001\u52a0\u8f7d\u7684\u6570\u636e\u6293\u53d6\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f18\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u53ef\u4ee5\u5904\u7406\u52a8\u6001\u52a0\u8f7d\u7684\u9875\u9762\u3002<\/li>\n<li>\u63d0\u4f9b\u4e86\u591a\u79cd\u6d4f\u89c8\u5668\u7684\u652f\u6301\u3002<\/li>\n<\/ul>\n<p><p><strong>\u52a3\u52bf\uff1a<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u901f\u5ea6\u8f83\u6162\uff0c\u4e0d\u9002\u5408\u5927\u89c4\u6a21\u6570\u636e\u6293\u53d6\u3002<\/li>\n<li>\u9700\u8981\u5b89\u88c5\u6d4f\u89c8\u5668\u548c\u9a71\u52a8\u7a0b\u5e8f\uff0c\u914d\u7f6e\u8f83\u4e3a\u590d\u6742\u3002<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001\u8bbe\u8ba1\u722c\u866b\u903b\u8f91<\/h3>\n<\/p>\n<p><p>\u5728\u9009\u62e9\u4e86\u5408\u9002\u7684\u5de5\u5177\u540e\uff0c\u63a5\u4e0b\u6765\u9700\u8981\u8bbe\u8ba1\u722c\u866b\u7684\u903b\u8f91\u3002\u8fd9\u4e00\u6b65\u9aa4\u5305\u62ec\u786e\u5b9a\u76ee\u6807\u7f51\u7ad9\u3001\u5206\u6790\u7f51\u9875\u7ed3\u6784\u3001\u7f16\u5199\u722c\u866b\u4ee3\u7801\u7b49\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u786e\u5b9a\u76ee\u6807\u7f51\u7ad9<\/h4>\n<\/p>\n<p><p>\u9009\u62e9\u4e00\u4e2a\u5408\u6cd5\u4e14\u6570\u636e\u4e30\u5bcc\u7684\u7f51\u7ad9\u4f5c\u4e3a\u76ee\u6807\u3002\u786e\u4fdd\u6240\u6293\u53d6\u7684\u6570\u636e\u4e0d\u4f1a\u4fb5\u72af\u7248\u6743\u548c\u9690\u79c1\u3002<\/p>\n<\/p>\n<p><h4>2\u3001\u5206\u6790\u7f51\u9875\u7ed3\u6784<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\uff08\u5982Chrome\u7684DevTools\uff09\u5206\u6790\u76ee\u6807\u7f51\u9875\u7684HTML\u7ed3\u6784\uff0c\u627e\u51fa\u6240\u9700\u6570\u636e\u6240\u5728\u7684\u6807\u7b7e\u548c\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><h4>3\u3001\u7f16\u5199\u722c\u866b\u4ee3\u7801<\/h4>\n<\/p>\n<p><p>\u6839\u636e\u5206\u6790\u7ed3\u679c\uff0c\u7f16\u5199\u722c\u866b\u4ee3\u7801\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528BeautifulSoup\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import requests<\/p>\n<p>from bs4 import BeautifulSoup<\/p>\n<h2><strong>\u53d1\u9001HTTP\u8bf7\u6c42<\/strong><\/h2>\n<p>url = &#39;http:\/\/example.com&#39;<\/p>\n<p>response = requests.get(url)<\/p>\n<h2><strong>\u89e3\u6790HTML\u6587\u6863<\/strong><\/h2>\n<p>soup = BeautifulSoup(response.text, &#39;html.parser&#39;)<\/p>\n<h2><strong>\u63d0\u53d6\u6570\u636e<\/strong><\/h2>\n<p>data = soup.find_all(&#39;div&#39;, class_=&#39;data&#39;)<\/p>\n<h2><strong>\u6253\u5370\u6570\u636e<\/strong><\/h2>\n<p>for item in data:<\/p>\n<p>    print(item.text)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u6570\u636e\u6293\u53d6\u4e0e\u5b58\u50a8<\/h3>\n<\/p>\n<p><p>\u6570\u636e\u6293\u53d6\u662f\u722c\u866b\u7684\u6838\u5fc3\u4efb\u52a1\u3002\u6293\u53d6\u5230\u7684\u6570\u636e\u9700\u8981\u59a5\u5584\u5b58\u50a8\uff0c\u4ee5\u4fbf\u540e\u7eed\u7684\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u6570\u636e\u6293\u53d6<\/h4>\n<\/p>\n<p><p>\u6839\u636e\u722c\u866b\u903b\u8f91\uff0c\u9010\u6b65\u6293\u53d6\u76ee\u6807\u7f51\u7ad9\u7684\u6570\u636e\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0d\u8981\u5bf9\u76ee\u6807\u7f51\u7ad9\u8fdb\u884c\u8fc7\u4e8e\u9891\u7e41\u7684\u8bf7\u6c42\uff0c\u4ee5\u514d\u88ab\u5c01\u7981\u3002<\/p>\n<\/p>\n<p><h4>2\u3001\u6570\u636e\u5b58\u50a8<\/h4>\n<\/p>\n<p><p>\u6293\u53d6\u5230\u7684\u6570\u636e\u53ef\u4ee5\u5b58\u50a8\u5230\u591a\u79cd\u5b58\u50a8\u4ecb\u8d28\u4e2d\uff0c\u5982\u672c\u5730\u6587\u4ef6\u3001\u6570\u636e\u5e93\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5c06\u6570\u636e\u5b58\u50a8\u5230CSV\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import csv<\/p>\n<h2><strong>\u6253\u5f00CSV\u6587\u4ef6<\/strong><\/h2>\n<p>with open(&#39;data.csv&#39;, &#39;w&#39;, newline=&#39;&#39;) as file:<\/p>\n<p>    writer = csv.writer(file)<\/p>\n<p>    # \u5199\u5165\u6570\u636e<\/p>\n<p>    for item in data:<\/p>\n<p>        writer.writerow([item.text])<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u6570\u636e\u6e05\u6d17\u4e0e\u5206\u6790<\/h3>\n<\/p>\n<p><p>\u6293\u53d6\u5230\u7684\u6570\u636e\u5f80\u5f80\u662f\u6742\u4e71\u65e0\u7ae0\u7684\uff0c\u9700\u8981\u8fdb\u884c\u6e05\u6d17\u548c\u5206\u6790\uff0c\u4ee5\u63d0\u53d6\u6709\u7528\u7684\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u6570\u636e\u6e05\u6d17<\/h4>\n<\/p>\n<p><p>\u6570\u636e\u6e05\u6d17\u5305\u62ec\u53bb\u91cd\u3001\u53bb\u9664\u65e0\u6548\u6570\u636e\u3001\u683c\u5f0f\u5316\u6570\u636e\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u6e05\u6d17\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">cleaned_data = []<\/p>\n<p>for item in data:<\/p>\n<p>    text = item.text.strip()<\/p>\n<p>    # \u53bb\u9664\u7a7a\u767d\u6570\u636e<\/p>\n<p>    if text:<\/p>\n<p>        cleaned_data.append(text)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u6570\u636e\u5206\u6790<\/h4>\n<\/p>\n<p><p>\u6839\u636e\u7814\u7a76\u76ee\u7684\uff0c\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5206\u6790\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528Python\u7684pandas\u5e93\u8fdb\u884c\u6570\u636e\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u5206\u6790\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u8bfb\u53d6CSV\u6587\u4ef6<\/strong><\/h2>\n<p>df = pd.read_csv(&#39;data.csv&#39;)<\/p>\n<h2><strong>\u6570\u636e\u7edf\u8ba1\u5206\u6790<\/strong><\/h2>\n<p>summary = df.describe()<\/p>\n<p>print(summary)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u8bba\u6587\u64b0\u5199\u4e0e\u7ed3\u679c\u5c55\u793a<\/h3>\n<\/p>\n<p><p>\u5728\u5b8c\u6210\u6570\u636e\u6293\u53d6\u548c\u5206\u6790\u540e\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u64b0\u5199\u8bba\u6587\u548c\u5c55\u793a\u7ed3\u679c\u7684\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u8bba\u6587\u7ed3\u6784<\/h4>\n<\/p>\n<p><p>\u8bba\u6587\u7684\u7ed3\u6784\u4e00\u822c\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>\u6458\u8981<\/strong>\uff1a\u7b80\u8981\u4ecb\u7ecd\u7814\u7a76\u80cc\u666f\u3001\u65b9\u6cd5\u3001\u7ed3\u679c\u548c\u7ed3\u8bba\u3002<\/li>\n<li><strong>\u5f15\u8a00<\/strong>\uff1a\u8be6\u7ec6\u9610\u8ff0\u7814\u7a76\u80cc\u666f\u3001\u95ee\u9898\u548c\u76ee\u7684\u3002<\/li>\n<li><strong>\u65b9\u6cd5<\/strong>\uff1a\u4ecb\u7ecd\u722c\u866b\u8bbe\u8ba1\u3001\u6570\u636e\u6293\u53d6\u3001\u6570\u636e\u6e05\u6d17\u548c\u5206\u6790\u7684\u65b9\u6cd5\u3002<\/li>\n<li><strong>\u7ed3\u679c<\/strong>\uff1a\u5c55\u793a\u6570\u636e\u5206\u6790\u7684\u7ed3\u679c\uff0c\u4f7f\u7528\u56fe\u8868\u548c\u8868\u683c\u8fdb\u884c\u8bf4\u660e\u3002<\/li>\n<li><strong>\u8ba8\u8bba<\/strong>\uff1a\u5bf9\u7ed3\u679c\u8fdb\u884c\u89e3\u91ca\uff0c\u8ba8\u8bba\u7814\u7a76\u7684\u610f\u4e49\u3001\u5c40\u9650\u6027\u548c\u672a\u6765\u7814\u7a76\u65b9\u5411\u3002<\/li>\n<li><strong>\u7ed3\u8bba<\/strong>\uff1a\u603b\u7ed3\u7814\u7a76\u7684\u4e3b\u8981\u53d1\u73b0\u548c\u8d21\u732e\u3002<\/li>\n<\/ul>\n<p><h4>2\u3001\u7ed3\u679c\u5c55\u793a<\/h4>\n<\/p>\n<p><p>\u5728\u8bba\u6587\u4e2d\uff0c\u4f7f\u7528\u56fe\u8868\u548c\u8868\u683c\u76f4\u89c2\u5730\u5c55\u793a\u6570\u636e\u5206\u6790\u7684\u7ed3\u679c\u3002\u53ef\u4ee5\u4f7f\u7528Python\u7684matplotlib\u548cseaborn\u5e93\u8fdb\u884c\u6570\u636e\u53ef\u89c6\u5316\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u53ef\u89c6\u5316\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>import seaborn as sns<\/p>\n<h2><strong>\u6570\u636e\u53ef\u89c6\u5316<\/strong><\/h2>\n<p>sns.histplot(df[&#39;column_name&#39;])<\/p>\n<h2><strong>\u663e\u793a\u56fe\u8868<\/strong><\/h2>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516d\u3001\u6848\u4f8b\u5206\u6790<\/h3>\n<\/p>\n<p><p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u4f7f\u7528Python\u722c\u866b\u5199\u8bba\u6587\uff0c\u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u5177\u4f53\u7684\u6848\u4f8b\u8fdb\u884c\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u6848\u4f8b\u80cc\u666f<\/h4>\n<\/p>\n<p><p>\u5047\u8bbe\u6211\u4eec\u8981\u7814\u7a76\u67d0\u7535\u5546\u7f51\u7ad9\u4e0a\u7684\u5546\u54c1\u8bc4\u8bba\u6570\u636e\uff0c\u5206\u6790\u4e0d\u540c\u5546\u54c1\u7684\u7528\u6237\u8bc4\u4ef7\u548c\u8bc4\u5206\u5206\u5e03\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><h4>2\u3001\u786e\u5b9a\u76ee\u6807\u7f51\u7ad9<\/h4>\n<\/p>\n<p><p>\u9009\u62e9\u4e00\u4e2a\u5408\u6cd5\u7684\u7535\u5546\u7f51\u7ad9\u4f5c\u4e3a\u76ee\u6807\uff0c\u786e\u4fdd\u6240\u6293\u53d6\u7684\u6570\u636e\u4e0d\u4f1a\u4fb5\u72af\u7248\u6743\u548c\u9690\u79c1\u3002<\/p>\n<\/p>\n<p><h4>3\u3001\u5206\u6790\u7f51\u9875\u7ed3\u6784<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u6d4f\u89c8\u5668\u7684\u5f00\u53d1\u8005\u5de5\u5177\u5206\u6790\u76ee\u6807\u7f51\u9875\u7684HTML\u7ed3\u6784\uff0c\u627e\u51fa\u8bc4\u8bba\u6570\u636e\u6240\u5728\u7684\u6807\u7b7e\u548c\u5c5e\u6027\u3002<\/p>\n<\/p>\n<p><h4>4\u3001\u7f16\u5199\u722c\u866b\u4ee3\u7801<\/h4>\n<\/p>\n<p><p>\u6839\u636e\u5206\u6790\u7ed3\u679c\uff0c\u4f7f\u7528Scrapy\u7f16\u5199\u722c\u866b\u4ee3\u7801\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import scrapy<\/p>\n<p>class ReviewsSpider(scrapy.Spider):<\/p>\n<p>    name = &#39;reviews&#39;<\/p>\n<p>    start_urls = [&#39;http:\/\/example.com\/product\/1\/reviews&#39;]<\/p>\n<p>    def parse(self, response):<\/p>\n<p>        for review in response.css(&#39;div.review&#39;):<\/p>\n<p>            yield {<\/p>\n<p>                &#39;user&#39;: review.css(&#39;span.user::text&#39;).get(),<\/p>\n<p>                &#39;rating&#39;: review.css(&#39;span.rating::text&#39;).get(),<\/p>\n<p>                &#39;comment&#39;: review.css(&#39;p.comment::text&#39;).get(),<\/p>\n<p>            }<\/p>\n<p>        next_page = response.css(&#39;a.next::attr(href)&#39;).get()<\/p>\n<p>        if next_page is not None:<\/p>\n<p>            yield response.follow(next_page, self.parse)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>5\u3001\u6570\u636e\u5b58\u50a8<\/h4>\n<\/p>\n<p><p>\u5c06\u6293\u53d6\u5230\u7684\u8bc4\u8bba\u6570\u636e\u5b58\u50a8\u5230CSV\u6587\u4ef6\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import csv<\/p>\n<h2><strong>\u6253\u5f00CSV\u6587\u4ef6<\/strong><\/h2>\n<p>with open(&#39;reviews.csv&#39;, &#39;w&#39;, newline=&#39;&#39;) as file:<\/p>\n<p>    writer = csv.writer(file)<\/p>\n<p>    # \u5199\u5165\u8868\u5934<\/p>\n<p>    writer.writerow([&#39;user&#39;, &#39;rating&#39;, &#39;comment&#39;])<\/p>\n<p>    # \u5199\u5165\u6570\u636e<\/p>\n<p>    for item in data:<\/p>\n<p>        writer.writerow([item[&#39;user&#39;], item[&#39;rating&#39;], item[&#39;comment&#39;]])<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>6\u3001\u6570\u636e\u6e05\u6d17\u4e0e\u5206\u6790<\/h4>\n<\/p>\n<p><p>\u5bf9\u6293\u53d6\u5230\u7684\u8bc4\u8bba\u6570\u636e\u8fdb\u884c\u6e05\u6d17\u548c\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u6e05\u6d17\u548c\u5206\u6790\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u8bfb\u53d6CSV\u6587\u4ef6<\/strong><\/h2>\n<p>df = pd.read_csv(&#39;reviews.csv&#39;)<\/p>\n<h2><strong>\u6570\u636e\u6e05\u6d17<\/strong><\/h2>\n<p>df[&#39;rating&#39;] = pd.to_numeric(df[&#39;rating&#39;], errors=&#39;coerce&#39;)<\/p>\n<p>df.dropna(inplace=True)<\/p>\n<h2><strong>\u6570\u636e\u7edf\u8ba1\u5206\u6790<\/strong><\/h2>\n<p>summary = df.describe()<\/p>\n<p>print(summary)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>7\u3001\u7ed3\u679c\u5c55\u793a<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528Python\u7684matplotlib\u548cseaborn\u5e93\u8fdb\u884c\u6570\u636e\u53ef\u89c6\u5316\uff0c\u5c55\u793a\u4e0d\u540c\u5546\u54c1\u7684\u7528\u6237\u8bc4\u4ef7\u548c\u8bc4\u5206\u5206\u5e03\u60c5\u51b5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u53ef\u89c6\u5316\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>import seaborn as sns<\/p>\n<h2><strong>\u6570\u636e\u53ef\u89c6\u5316<\/strong><\/h2>\n<p>sns.histplot(df[&#39;rating&#39;])<\/p>\n<h2><strong>\u663e\u793a\u56fe\u8868<\/strong><\/h2>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e03\u3001\u603b\u7ed3\u4e0e\u5c55\u671b<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u6211\u4eec\u53ef\u4ee5\u5b8c\u6574\u5730\u8fdb\u884cPython\u722c\u866b\u7684\u8bbe\u8ba1\u3001\u6570\u636e\u6293\u53d6\u3001\u6570\u636e\u6e05\u6d17\u4e0e\u5206\u6790\u4ee5\u53ca\u8bba\u6587\u64b0\u5199\u4e0e\u7ed3\u679c\u5c55\u793a\u3002\u5728\u5b9e\u9645\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<\/p>\n<p><h4>1\u3001\u5408\u6cd5\u6027\u4e0e\u4f26\u7406\u95ee\u9898<\/h4>\n<\/p>\n<p><p>\u786e\u4fdd\u6240\u6293\u53d6\u7684\u6570\u636e\u4e0d\u4f1a\u4fb5\u72af\u4ed6\u4eba\u7684\u7248\u6743\u548c\u9690\u79c1\u3002\u5728\u8fdb\u884c\u6570\u636e\u6293\u53d6\u524d\uff0c\u6700\u597d\u9605\u8bfb\u76ee\u6807\u7f51\u7ad9\u7684robots.txt\u6587\u4ef6\uff0c\u4e86\u89e3\u5176\u722c\u866b\u89c4\u5219\u3002<\/p>\n<\/p>\n<p><h4>2\u3001\u6570\u636e\u8d28\u91cf<\/h4>\n<\/p>\n<p><p>\u6293\u53d6\u5230\u7684\u6570\u636e\u8d28\u91cf\u76f4\u63a5\u5f71\u54cd\u5206\u6790\u7ed3\u679c\u3002\u56e0\u6b64\uff0c\u5728\u6570\u636e\u6e05\u6d17\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u4ed4\u7ec6\u68c0\u67e5\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<\/p>\n<p><h4>3\u3001\u6027\u80fd\u4f18\u5316<\/h4>\n<\/p>\n<p><p>\u5bf9\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u6293\u53d6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u591a\u7ebf\u7a0b\u6216\u5206\u5e03\u5f0f\u722c\u866b\uff0c\u4ee5\u63d0\u9ad8\u6293\u53d6\u6548\u7387\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7f13\u5b58\u3001\u4ee3\u7406\u7b49\u6280\u672f\uff0c\u907f\u514d\u88ab\u76ee\u6807\u7f51\u7ad9\u5c01\u7981\u3002<\/p>\n<\/p>\n<p><h4>4\u3001\u6301\u7eed\u6539\u8fdb<\/h4>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u95ee\u9898\u548c\u6311\u6218\uff0c\u9700\u8981\u4e0d\u65ad\u5730\u8c03\u6574\u548c\u4f18\u5316\u722c\u866b\u4ee3\u7801\u3002\u540c\u65f6\uff0c\u8981\u5173\u6ce8\u6700\u65b0\u7684\u6280\u672f\u548c\u5de5\u5177\uff0c\u4ee5\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u548c\u6570\u636e\u8d28\u91cf\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u7cfb\u7edf\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\uff0c\u638c\u63e1Python\u722c\u866b\u7684\u6280\u80fd\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u4e3a\u8bba\u6587\u7814\u7a76\u63d0\u4f9b\u5f3a\u6709\u529b\u7684\u652f\u6301\uff0c\u8fd8\u53ef\u4ee5\u5e94\u7528\u5230\u5176\u4ed6\u6570\u636e\u5206\u6790\u548c\u6316\u6398\u7684\u573a\u666f\u4e2d\uff0c\u63d0\u5347\u81ea\u8eab\u7684\u4e13\u4e1a\u80fd\u529b\u548c\u7ade\u4e89\u529b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5229\u7528Python\u722c\u866b\u6280\u672f\u6536\u96c6\u8bba\u6587\u8d44\u6599\uff1f<\/strong><br \/>Python\u722c\u866b\u6280\u672f\u80fd\u591f\u5e2e\u52a9\u7814\u7a76\u4eba\u5458\u5feb\u901f\u6536\u96c6\u5927\u91cf\u7684\u5b66\u672f\u8bba\u6587\u548c\u76f8\u5173\u6570\u636e\u3002\u4f7f\u7528\u50cfBeautiful 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