blocks|key|4024640|text|下面是一个完整的示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4024641|from+PyQt5.QtGui+import+QFont
from+PyQt5.QtWidgets+import+QApplication,\
++++QFileDialog
import+sys

app+=+QApplication(sys.argv)
dialog+=+QFileDialog()
dialog.setFileMode(QFileDialog.DirectoryOnly)++++
dialog.setLabelText(QFileDialog.Accept,+"WYBIERZ")
dialog.setLabelText(QFileDialog.Reject,+"REJECT")
dialog.setFont(QFont("Arial",+20))
dialog.show()
sys.exit(app.exec_())|code-block|syntax|javascript|4024642|要点：|4024643|getExistingDirectory是一个静态函数。请不要将其与QFileDialog实例混淆。您需要通过dialog.setFileMode(QFileDialog.DirectoryOnly)设置DirectoryOnly|offset|length|style|CODE|4024644|QFileDialog::Accept和QFileDialog::Reject是枚举值。您需要在pyqt中将它们称为QFileDialog.Accept和QFileDialog.Reject。|4024645|您需要导入QFont，而不是Font。|4024646|entityMap|0|LINK|mutability|MUTABLE|url|http://doc.qt.io/qt-5/qfiledialog.html#getExistingDirectory|1|http://doc.qt.io/qt-5/qfiledialog.html#DialogLabel-enum|2^0|0|0|0|1J|19|2U|D|0|K|0|0|1C|4|1M|I|25|I|0|J|1|K|J|2|0|5|5|E|4|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|14|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|15|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|16|8|@$K|17|L|18|M|N]|$K|19|L|1A|M|N]]|9|@$K|1B|L|1C|1|1D]]|A|$]]|$1|O|3|P|5|6|7|1E|8|@$K|1F|L|1G|M|N]|$K|1H|L|1I|M|N]|$K|1J|L|1K|M|N]]|9|@$K|1L|L|1M|1|1N]|$K|1O|L|1P|1|1Q]]|A|$]]|$1|Q|3|R|5|6|7|1R|8|@$K|1S|L|1T|M|N]|$K|1U|L|1V|M|N]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]|10|$5|V|W|X|A|$Y|11]]|12|$5|V|W|X|A|$Y|11]]]]

Here is a complete example:

<pre><code>from PyQt5.QtGui import QFont
from PyQt5.QtWidgets import QApplication,\
 QFileDialog
import sys

app = QApplication(sys.argv)
dialog = QFileDialog()
dialog.setFileMode(QFileDialog.DirectoryOnly) 
dialog.setLabelText(QFileDialog.Accept, "WYBIERZ")
dialog.setLabelText(QFileDialog.Reject, "REJECT")
dialog.setFont(QFont("Arial", 20))
dialog.show()
sys.exit(app.exec_())
</code></pre>

Key points:

<a href="http://doc.qt.io/qt-5/qfiledialog.html#getExistingDirectory" rel="nofollow noreferrer">getExistingDirectory</a> is a static function. Do not mix it up with a QFileDialog instance. You need to set <code>DirectoryOnly</code> by <code>dialog.setFileMode(QFileDialog.DirectoryOnly)</code>

<a href="http://doc.qt.io/qt-5/qfiledialog.html#DialogLabel-enum" rel="nofollow noreferrer">QFileDialog::Accept</a> and <a href="http://doc.qt.io/qt-5/qfiledialog.html#DialogLabel-enum" rel="nofollow noreferrer">QFileDialog::Reject</a> are enum values. You need to refer to them as <code>QFileDialog.Accept</code> and <code>QFileDialog.Reject</code> in <code>pyqt</code>.

You need to import <code>QFont</code>, not <code>Font</code>.

I have created larger program for Raspberry Pi 3+. Part of it is a method calling QFileDialog. As I am using embedded display icons are very small and I would like to increase the size of them

I only use (ShowDirsOnly) and I got 2 icons Choose and Cancel - in the documentation, it states Accept and Reject but I can't find one I got.

Here is my code:

<pre><code>dialog = PyQt5.QtGui.QFileDialog()
dialog.setLabelText(dialog.Accept,"WYBIERZ") 
dialog.setFont(PyQt5.QtGui.Font('Arial',12))
my_dir=dialog.getExistingDirectory(None,"Wybierz folder", "/media/pi/".dialog.ShowDirsOnly)
</code></pre>

It doesn't work.. I have spend a lot of time on that maybe somebody can help me.

PyQt5 QFileDialog setFont

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我已经为树莓派3+创建了更大的程序。它的一部分是调用QFileDialog的方法。因为我正在使用嵌入式显示图标，所以非常小，我想增加它们的大小我只使用(ShowDirsOnly)，我有两个图标选择和取消-在文档中，它表明接受和拒绝，但我找不到一个我得到的。下面是我的代码：dialog = PyQt5.QtGui.QFi...

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