Python 正则表达式查找特定单词后的所有单词？
我有一个字符串，如下所示：Python 正则表达式查找特定单词后的所有单词？,python,regex,python-3.x,pattern-matching,Python,Regex,Python 3.x,Pattern Matching,我有一个字符串，如下所示： Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A.
Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A. -Orientation: Horizontal. **Subject: -Figures/Nautical and beach.** Gender: -Unisex/Both. Size: -Mini 17'' and under/Small 18''-24''/Medium 25''-32''/Large 33''-40''/Oversized 41'' and above. Style: -Fine art. Color: -Blue. Country of Manufacture: -United States. Product Type: -Print of painting. Region: -Europe. Primary Art Material: -Canvas. Dimensions: -8'' H x 12'' W x 0.75'' D: 0.72 lb. -12'' H x 18'' W x 0.75'' D: 1.14 lbs. -12'' H x 18'' W x 1.5'' D: 2.45 lbs. -18'' H x 26'' W x 0.75'' D: 1.44 lbs. Paintings Prints Tori White Wildon Photography Photos Posters Abstract Black D cor Designs Framed Hazelwood Hokku Home Landscape Oil Accent 075 12 15 18 26 40 60 8 D H W x 1 1017 1824 2532 holidays, christmas gift gifts for girls boys
Subject: -Figures/Nautical and beach.
“Subject”Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A. -Orientation: Horizontal. **Subject: -Figures/Nautical and beach.** Gender: -Unisex/Both. Size: -Mini 17'' and under/Small 18''-24''/Medium 25''-32''/Large 33''-40''/Oversized 41'' and above. Style: -Fine art. Color: -Blue. Country of Manufacture: -United States. Product Type: -Print of painting. Region: -Europe. Primary Art Material: -Canvas. Dimensions: -8'' H x 12'' W x 0.75'' D: 0.72 lb. -12'' H x 18'' W x 0.75'' D: 1.14 lbs. -12'' H x 18'' W x 1.5'' D: 2.45 lbs. -18'' H x 26'' W x 0.75'' D: 1.44 lbs. Paintings Prints Tori White Wildon Photography Photos Posters Abstract Black D cor Designs Framed Hazelwood Hokku Home Landscape Oil Accent 075 12 15 18 26 40 60 8 D H W x 1 1017 1824 2532 holidays, christmas gift gifts for girls boys
Subject: -Figures/Nautical and beach.
re.compile('(?<=subject)(.{30}(?:\s|.))',re.I)
（？试试：
正则表达式：
(Subject:.+)\*\*
Match Subject and content after that till '**'
str = 'Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A. -Orientation: Horizontal. **Subject: -Figures/Nautical and beach.** Gender: -Unisex/Both. Size: -Mini 17'' and under/Small 18''-24''/Medium 25''-32''/Large 33''-40''/Oversized 41'' and above. Style: -Fine art. Color: -Blue. Country of Manufacture: -United States. Product Type: -Print of painting. Region: -Europe. Primary Art Material: -Canvas. Dimensions: -8'' H x 12'' W x 0.75'' D: 0.72 lb. -12'' H x 18'' W x 0.75'' D: 1.14 lbs. -12'' H x 18'' W x 1.5'' D: 2.45 lbs. -18'' H x 26'' W x 0.75'' D: 1.44 lbs. Paintings Prints Tori White Wildon Photography Photos Posters Abstract Black D cor Designs Framed Hazelwood Hokku Home Landscape Oil Accent 075 12 15 18 26 40 60 8 D H W x 1 1017 1824 2532 holidays, christmas gift gifts for girls boys'
import re
a = re.search(r'(Subject:.+)\*\*',str)
print(a.group(1))
代码：
(Subject:.+)\*\*
Match Subject and content after that till '**'
str = 'Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A. -Orientation: Horizontal. **Subject: -Figures/Nautical and beach.** Gender: -Unisex/Both. Size: -Mini 17'' and under/Small 18''-24''/Medium 25''-32''/Large 33''-40''/Oversized 41'' and above. Style: -Fine art. Color: -Blue. Country of Manufacture: -United States. Product Type: -Print of painting. Region: -Europe. Primary Art Material: -Canvas. Dimensions: -8'' H x 12'' W x 0.75'' D: 0.72 lb. -12'' H x 18'' W x 0.75'' D: 1.14 lbs. -12'' H x 18'' W x 1.5'' D: 2.45 lbs. -18'' H x 26'' W x 0.75'' D: 1.44 lbs. Paintings Prints Tori White Wildon Photography Photos Posters Abstract Black D cor Designs Framed Hazelwood Hokku Home Landscape Oil Accent 075 12 15 18 26 40 60 8 D H W x 1 1017 1824 2532 holidays, christmas gift gifts for girls boys'
import re
a = re.search(r'(Subject:.+)\*\*',str)
print(a.group(1))
你有什么理由不能在**
上进行拆分并为结果列表编制索引吗？s.split（“**”[1]
产生的正是你想要的结果。如果你的问题没有很好的定义，答案也会很容易找到。“period或space”的正则表达式是[\s.]
但这显然不是你问题的解决方案。仔细想想你实际需要什么。很多答案都是关于星号的，很明显，你放星号只是为了突出你想要提取的字段。也许你应该把它们拿出来，这样你的示例输入就正好是你实际需要的示例需要处理。我认为任何人都不会误解“提取主题：
值”这句话（尽管不清楚如何确定它的结尾）。它正确地给出了输出。[^.]
匹配任何字符（包括空格），我想知道它不会在“空白”处停止，因为有时没有句号或任何其他非单词字符。我现在还添加了一个注释，解释为什么需要\S+
。该[^.]
匹配任何字符（包括空格）和<代码> +>代码>使其匹配一次或多次GRIDELI.考虑此字符串“运动和运动队性别：中性 风格：当代 媒体：Giclee印刷 产品类型：平面艺术 主要艺术材料：帆布
尺寸36英寸高x 24英寸宽x 1.5英寸在您在评论中提供的字符串中没有“主题”。对不起。"主题：运动和运动队性别：中性风格：当代风格：Giclee印刷品类型：平面艺术主要艺术材料：画布尺寸：36英寸高x 24英寸宽x 1.5英寸注：您不需要在字符类内转义*
，如*
内部的[…]
失去了其量词的原始含义。{2}
使[^*{2}]+
模式的意思是：除*
、{
、2
和]之外的一个或多个字符
。事实上，输入中似乎缺少期望值后的星号。我从OP注释到我的答案中推断出它。事实上，输入中似乎缺少期望值后的星号。我从OP注释到我的答案中推断出它。