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text1.py

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+import re
+text = '''
+2024-03-15 天气：晴 温度：15-25°C
+2024-03-16 天气：多云 温度：12-20°C
+2024-03-17 天气：小雨 温度：10-18°C
+'''
+
+pattern = r'(\d{4}-\d{2}-\d{2})\s*天气：([^ ]+)\s*温度：(\d+)-(\d+)°C'
+matches = re.findall(pattern, text)
+
+for match in matches:
+    date, weather, low, high = match
+    print(f'{date}: {weather}, {low}°C-{high}°C')

text2.py

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+import re
+
+html = '''
+<div class="movie">
+    <h2 class="name">《流浪地球》</h2>
+    <span class="year">(2024)</span>
+    <span class="rating">8.5</span>
+    <span class="director">导演：郭帆</span>
+</div>
+<div class="movie">
+    <h2 class="name">《你好，李焕英》</h2>
+    <span class="year">(2024)</span>
+    <span class="rating">7.9</span>
+    <span class="director">导演：贾玲</span>
+</div>
+'''
+
+# 编写正则表达式，提取所有电影信息
+# pattern = r'你的正则表达式'
+
+# 提示：可以用多个正则分别提取，或者用一个复杂的正则提取所有
+name_pattern = r'<h2 class="name">《([^》]+)》</h2>'
+year_pattern = r'<span class="year">\((\d{4})\)</span>'
+rating_pattern = r'<span class="rating">([^<]+)</span>'
+director_pattern = r'导演：([^<]+)'
+
+names = re.findall(name_pattern, html)
+years = re.findall(year_pattern, html)
+ratings = re.findall(rating_pattern, html)
+directors = re.findall(director_pattern, html)
+
+for i in range(len(names)):
+    print(f"{names[i]} | {years[i]} | 评分：{ratings[i]} | {directors[i]}")

text3.py

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+import re
+
+log = '''
+192.168.1.100 - - [15/Mar/2024:10:15:30 +0800] "GET /index.html HTTP/1.1" 200 1234
+10.0.0.50 - - [15/Mar/2024:10:15:31 +0800] "POST /api/login HTTP/1.1" 200 256
+192.168.1.101 - - [15/Mar/2024:10:15:32 +0800] "GET /notfound.html HTTP/1.1" 404 512
+172.16.0.200 - - [15/Mar/2024:10:15:33 +0800] "GET /images/logo.png HTTP/1.1" 200 4096
+'''
+
+# 提取 IP、时间和状态码
+pattern = r'(\d+\.\d+\.\d+\.\d+).*?\[([^\]]+)\].*?" (\d{3}) \d+'
+
+for match in re.finditer(pattern, log):
+    ip, time, status = match.groups()
+    print(f'IP: {ip:15} | 时间: {time:25} | 状态: {status}')

text4.py

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+import re
+
+phone_book = '''
+张三：138-1234-5678
+李四：139-5678-1234
+王五：138-0000-1111
+'''
+
+# 脱敏：将 138-****-5678 格式输出
+# 提示：使用分组和 re.sub
+
+pattern = r'(\d{3})-(\d{4})-(\d{4})'
+
+def mask_phone(match):
+    return f'{match.group(1)}-****-{match.group(3)}'
+
+masked = re.sub(pattern, mask_phone, phone_book)
+print(masked)