pyqt5 lower()

lower()是Python中的字符串方法，用于将字符串中的所有字符转换为小写字母。在PyQt5中，lower()方法可以用于处理界面中的文本内容，例如将用户输入的文本转换为小写字母进行处理。同时，lower()方法也可以用于比较字符串时的大小写不敏感性，以便进行准确的匹配和比较操作。\[1\]
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