Fix trailing-whitespace

Author: muziing

02-QtCore-非GUI的核心功能/01-The_Meta-Object_System-元对象系统.md

@@ -74,6 +74,6 @@ if (QLabel label = QLabel (obj)) {            label.setText(tr("Ping"))
 
 ------
 
-© 2022 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the [GNU Free Documentation License version 1.3](https://www.gnu.org/licenses/fdl-1.3.html) as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. 
+© 2022 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the [GNU Free Documentation License version 1.3](https://www.gnu.org/licenses/fdl-1.3.html) as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.
 
 © 2022 zh_CN Translation by muzing\<muzi2001@foxmail.com>.

03-QtWidgets-常用控件/01-QWidget-控件的基类/09-QWidget-键盘输入焦点-2.py

@@ -1,8 +1,3 @@
-import sys
-
-from PySide6 import QtWidgets
-from PySide6.QtCore import Qt
-
 """
 QWidget 键盘输入焦点控制
 
@@ -14,7 +9,7 @@
 
 https://doc.qt.io/qt-6/qwidget.html#setFocusProxy
 .setFocusPolicy(policy: Qt.FocusPolicy)      设置焦点策略，详见下方Qt.FocusPolicy
-.focusPolicy() -> Qt.FocusPolicy             返回该控件的焦点策略                               
+.focusPolicy() -> Qt.FocusPolicy             返回该控件的焦点策略
 
 Qt.FocusPolicy 具体分为如下数种：
 https://doc.qt.io/qt-6/qt.html#FocusPolicy-enum
@@ -32,6 +27,11 @@
 
 """
 
+import sys
+
+from PySide6 import QtWidgets
+from PySide6.QtCore import Qt
+
 
 class MyWidget(QtWidgets.QWidget):
     def __init__(self, *args, **kwargs):

03-QtWidgets-常用控件/11-ComboBox-下拉框/01-QComboBox-组合下拉框/06-QComboBox-信号.py

@@ -1,14 +1,10 @@
-import sys
-
-from PySide6 import QtCore, QtWidgets
-
 """
 QComboBox 信号
 提供了多种精细的信号供使用
 
 .activated(index: int)
     当用户在组合下拉框中选中一个条目时发射此信号，索引作为参数传递。即使选中项未改变也会发射
-    
+
 .currentIndexChanged(index: int)
     当当前索引由用户交互或编程方式改变时发射此信号，索引作为参数传递。
     若combobox为空或当前索引已重置，则传递条目的 index 或 -1
@@ -18,11 +14,11 @@
 
 .editTextChanged(text: str)
     当启用了可编辑模式，且编辑器中的文本发生改变时发射此信号，新的文本作为参数传递
-    
+
 .highlighted(index: int)
     当用户高亮（光标移入或键盘选择）了弹出菜单中的某一条目时发射此信号
     索引值作为参数传递
-    
+
 .textActivated(text: str)
     当用户选择了条目之一时，发射此信号并将文本作为参数传递
     即使选择未发生改变也会发射此信号
@@ -33,6 +29,10 @@
 
 """
 
+import sys
+
+from PySide6 import QtCore, QtWidgets
+
 
 class MyWidget(QtWidgets.QWidget):
     def __init__(self, *args, **kwargs):

03-QtWidgets-常用控件/12-Dialog-对话框/01-QDialog-对话框基类/03-QDialog-槽、尺寸拖拽.py

@@ -1,7 +1,3 @@
-import sys
-
-from PySide6 import QtCore, QtWidgets
-
 """
 QDialog 槽、结果、尺寸拖拽控件
 
@@ -14,7 +10,7 @@
                       则done()也将导致局部事件循环结束，且exec()返回r。
 .exec()               将对话框作为模态对话框显示。（默认为应用程序级模态）此函数返回QDialog.Accepted或QDialog.Rejected。
                       尽量避免使用exec()函数，而用open()替代。因为open()是异步的，并且不会增加额外的事件循环
-                 
+
 QDialog.result中保存了对话框获得的结果，也可以通过代码显式设置结果码：
 .result() -> int      获取模态对话框的结果码，QDialog.Accepted为1,QDialog.Rejected为0
 .setResult(i: int)    将模态对话框的结果码设置为i
@@ -30,6 +26,10 @@
 
 """
 
+import sys
+
+from PySide6 import QtCore, QtWidgets
+
 
 class MyWidget(QtWidgets.QWidget):
     def __init__(self, *args, **kwargs):

05-QtWidgets-进阶话题/02-QSS-样式表/01-QSS主题及编辑器.md

@@ -67,7 +67,7 @@ class QSSLoader:
 ```python
 app = QApplication(sys.argv)
 window = MainWindow()
- 
+
 style_file = './style.qss'
 style_sheet = QSSLoader.read_qss_file(style_file)
 window.setStyleSheet(style_sheet)