pyside给lineEdit修改内容

可以使用 `setText()` 方法来修改 `QLineEdit` 控件的文本内容。示例代码如下：

from PySide2.QtWidgets import QApplication, QLineEdit, QWidget, QVBoxLayout

app = QApplication([])
window = QWidget()
layout = QVBoxLayout()

line_edit = QLineEdit()
line_edit.setText("Hello, World!")
layout.addWidget(line_edit)

window.setLayout(layout)
window.show()
app.exec_()

上述代码中，使用 `setText()` 方法将 `QLineEdit` 控件中的文本修改为 "Hello, World!"。

相关问题

pyside6 lineedit

PySide6 QLineEdit is a GUI widget that allows the user to enter and edit a single line of text. It is commonly used for inputting text data such as names, passwords, and search queries.

Here's an example of how to create a PySide6 QLineEdit:

from PySide6.QtWidgets import QApplication, QLineEdit, QWidget, QVBoxLayout

app = QApplication([])
window = QWidget()

layout = QVBoxLayout()

line_edit = QLineEdit()
line_edit.setPlaceholderText("Enter your text here")

layout.addWidget(line_edit)

window.setLayout(layout)
window.show()

app.exec_()

In the above example, we create a PySide6 application and a QWidget window. We then create a QVBoxLayout layout and add a QLineEdit widget to it. We set a placeholder text in the QLineEdit using the `setPlaceholderText` method. Finally, we set the layout of the window and display it using `show()`. The application is executed using `app.exec_()`.

pyside6 lineedit双击

您可以使用QLineEdit的setClearButtonEnabled(True)方法来启用清除按钮，该按钮将在用户输入文本时显示，并在单击时清除文本。如果您想要在双击时清除文本，可以使用以下代码：

lineEdit = QLineEdit()
lineEdit.setClearButtonEnabled(True)
lineEdit.setClearButtonEnabled(True)
lineEdit.textEdited.connect(lambda: lineEdit.lineEdit().selectAll())

这将在用户双击QLineEdit时选择所有文本，并在用户开始输入时清除文本。