正则表达式查找以大写字母开头的单词，而不是在句子的开头

Question

我设法找到了以大写字母开头的单词，但找不到正则表达式来过滤掉从句子开头开始的单词。

每个句子都以句号和空格结尾。

• Test_string = This is a Test sentence. The sentence is Supposed to Ignore the Words at the beginning of the Sentence. This is a Test sentence. The sentence is Supposed to Ignore the Words at the beginning of the Sentence.

• 所需的输出 = ['Test', 'Supposed', 'Ignore', 'Words', 'Sentence']

我正在用 Python 编码。 如果有人可以帮助我解决正则表达式，我会很高兴:)

Answer 1

您可以使用以下表达式：

(?<!^)(?<!\. )[A-Z][a-z]+

正则表达式演示在这里。

---

import re
mystr="This is a Test sentence. The sentence is Supposed to Ignore the Words at the beginning of the Sentence."

print(re.findall(r'(?<!^)(?<!\. )[A-Z][a-z]+',mystr))

印刷：

['Test', 'Supposed', 'Ignore', 'Words', 'Sentence']

Answer 2

一个非常基本的选择。 请参阅此处以获取解释。

[^.]\s([A-Z]\w+)

---

import re
s = 'This is a Test sentence. The sentence is Supposed to Ignore the Words at the beginning of the Sentence, And others.'
re.findall(r'[^.]\s([A-Z]\w+)', s)

输出

['Test', 'Supposed', 'Ignore', 'Words', 'Sentence', 'And']