计算字符串中的子字符串或单词

问题描述

我想知道在python中如何计算字符串中“ the”的出现。 我得到的问题是，它将用“ the”这样的词来计数：there，theatre .... etc

s = "The Journey: today I went there! There was not the...theatre but the Walgreens so I could buy a thermometer"

howmanythe = s.count("the") #I feel like here you could do " the " but I would miss any "the" after grammar notation
print("There are {} many the's in that phrase".format(howmanythe))

对不起，如果我的格式不正确，这是我的第一篇文章。

解决方法

在不区分大小写的模式下，您可以尝试在\bthe\b上进行正则表达式搜索，该模式将在文本中找到所有the个单词：

s = "The Journey: today I went there! There was not the...theatre but the Walgreens so I could buy a thermometer"
num = len(re.findall(r'\bthe\b',s,flags=re.IGNORECASE))
print("There were " + str(num) + " 'the' words in the text")

此打印：

There were 3 'the' words in the text