Python：正则表达式——提取中文文本

Question

我正在尝试从以下文本中提取省份和城市名称（这是 html，但我删除了一些转义字符）。但是，我编写的正则表达式返回一个空白列表。当我在一个 re 网站（例如https://regex101.com/）上测试代码时，它似乎可以工作，但是当我在脚本中编写它时它不起作用。这是我的代码的缩短版本（html 转储要长得多）。任何帮助，将不胜感激。import retext = 'try  window.getAreaStat = [provinceName:湖北省,provinceShortName:湖北,confirmedCount:3554,suspectedCount:0,curedCount:80,deadCount:125,comment:待明确地区：治愈 30,cities:[cityName:武汉,confirmedCount:1905,suspectedCount:0,curedCount:47,deadCount:104,cityName:黄冈,confirmedCount:324,suspectedCount:0,curedCount:2,deadCount:5,cityName:孝感,confirmedCount:274,suspectedCount:0,curedCount:0,deadCount:3,cityName:荆门,confirmedCount:142,suspectedCount:0,curedCount:0,deadCount:4,cityName:襄阳,confirmedCount:131,suspectedCount:0,curedCount:0,deadCount:0,cityName:随州,confirmedCount:116,suspectedCount:0,curedCount:0,deadCount:0,cityName:咸宁,confirmedCount:112,suspectedCount:0,curedCount:0,deadCount:0,cityName:荆州,confirmedCount:101,suspectedCount:0,curedCount:1,deadCount:2,cityName:十堰,confirmedCount:88,suspectedCount:0,curedCount:0,deadCount:0,cityName:黄石,confirmedCount:86,suspectedCount:0,curedCount:0,deadCount:1,cityName:鄂州,confirmedCount:84,suspectedCount:0,curedCount:0,deadCount:1,cityName:宜昌,confirmedCount:63,suspectedCount:0,curedCount:0,deadCount:1,cityName:恩施regex = "((?<=provinceName:)|(?<=cityName:)).*?(?=,)"province = re.findall(regex, text)print(province)['', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '']

Answer 1

从此答案中，re.findall将返回所有捕获的组。我在https://regexr101.com中尝试了您的正则表达式，它都返回空白捕获组。

您可以通过添加使用非捕获组(?:...)

regex = "(?:(?<=provinceName:)|(?<=cityName:)).*?(?=,)"

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