Python 检查字符串
检查字符串
要检查某个短语或字符是否存在于字符串中,我们可以使用关键字 in
或 not in
。
示例
检查短语 "ain" 是否存在于以下文本中:
txt = "The rain in Spain stays mainly in the plain"
x = "ain" in txt
print(x)
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示例
检查短语 "ain" 是否不存在于以下文本中:
txt = "The rain in Spain stays mainly in the plain"
x = "ain" not in txt
print(x)
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