谁能告诉我如何使用pyqt4的qss文件？我尝试在QT官方文档中更换QTdesigner中的样式表，如this。但它没有用。我不确定它对pyqt是否有效。我找到了this question，但我没有得到那个含义。任何人都可以告诉我如何详细地做或者给我链接的文档？
您可以在设计器或代码中更改Qt中的样式表。如果要加载qss文件并将样式表设置为窗口小部件，则只需读取文件并将读取的内容放在样式表中即可使用（文件必须采用正确的格式）。
例：
style_file.qss
QLineEdit{border-style: solid;
border-width: 1px;
border-radius: 5px;
border-color: rgb(125,125,125);
background-color: rgba(255, 134, 134, 150);}
将上面的文件加载到python文件中，并将该样式表应用于：
qss_file = open('style_file.qss').read()
ui.your_line_edit_control.setStyleSheet(qss_file)
如果你想通过QtDesigner编辑样式表，只需输入
QLineEdit{border-style: solid;
border-width: 1px;
border-radius: 5px;
border-color: rgb(125,125,125);
background-color: rgba(255, 134, 134, 150);}
在控件中右键单击您的控件并选择“编辑样式表”
注意：这种风格仅适用于QLineEdit，就像在样式代码中指定的那样...但当然你可以对所有小部件使用相同的方式（QToolButton，QLabel等儿子..）
QWidget {
background-color: #222222;
}
QLineEdit {
background-color: aliceblue;
color: #618b38;
font-style: italic;
font-weight: bold;
}
QLabel {
background-color: #222222;
color: #618b38;
}
QPushButton {
background-color: #8b0000;
color: #ffffff;
border-radius: 5px;
border-style: none;
height: 25px;
}
from PyQt5 import QtCore, QtWidgets
__author__ = "Psycho_Coder"
# noinspection PyUnresolvedReferences
class MainUiWindow(object):
def __init__(self):
#Main Window
self.centralwidget = QtWidgets.QWidget(MainWindow)
"""
Using Grid Layouts for Widgets Alignment
"""
#Grid Layout for Main Grid Layout
self.maingrid_layout = QtWidgets.QGridLayout(self.centralwidget)
#Grid Layout for Result Section Layout
self.resultgird = QtWidgets.QGridLayout()
#Grid Layout for Information section
self.infogrid = QtWidgets.QGridLayout()
#Grid Layout for holding all the widgets in place
self.outergrid = QtWidgets.QGridLayout()
#Button to clear all test input
self.clearall = QtWidgets.QPushButton(self.centralwidget)
#Button to show the final result by append
self.showres = QtWidgets.QPushButton(self.centralwidget)
#Horizontal layout to hold the result section horizontally
self.horizontal_layout = QtWidgets.QHBoxLayout()
"""
Show results widgets
"""
self.fullname = QtWidgets.QLabel(self.centralwidget)
self.result = QtWidgets.QLabel(self.centralwidget)
"""
Get Names info section
"""
self.firstname = QtWidgets.QLabel(self.centralwidget)
self.lastname = QtWidgets.QLabel(self.centralwidget)
#TextBox to get user input
self.fname = QtWidgets.QLineEdit(self.centralwidget)
self.lname = QtWidgets.QLineEdit(self.centralwidget)
def init_gui(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setStyleSheet(open("style.qss", "r").read())
MainWindow.setAutoFillBackground(True)
MainWindow.resize(328, 166)
self.centralwidget.setObjectName("centralwidget")
self.maingrid_layout.setObjectName("maingrid_layout")
self.outergrid.setObjectName("outergrid")
self.infogrid.setObjectName("infogrid")
self.firstname.setObjectName("firstname")
self.infogrid.addWidget(self.firstname, 0, 0, 1, 1)
self.fname.setObjectName("fname")
self.infogrid.addWidget(self.fname, 0, 1, 1, 1)
self.lastname.setObjectName("lastname")
self.infogrid.addWidget(self.lastname, 1, 0, 1, 1)
self.lname.setObjectName("lname")
self.infogrid.addWidget(self.lname, 1, 1, 1, 1)
self.outergrid.addLayout(self.infogrid, 0, 0, 1, 1)
self.fullname.setObjectName("fullname")
self.result.setMaximumSize(QtCore.QSize(140, 16777215))
self.result.setObjectName("result")
self.resultgird.setObjectName("resultgird")
self.resultgird.addWidget(self.fullname, 0, 0, 1, 1)
self.resultgird.addWidget(self.result, 0, 1, 1, 1)
self.outergrid.addLayout(self.resultgird, 1, 0, 1, 1)
self.showres.setObjectName("showres")
self.clearall.setObjectName("clearall")
self.horizontal_layout.setObjectName("horizontal_layout")
self.horizontal_layout.addWidget(self.showres)
self.horizontal_layout.addWidget(self.clearall)
self.outergrid.addLayout(self.horizontal_layout, 2, 0, 1, 1)
self.maingrid_layout.addLayout(self.outergrid, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslate_gui(MainWindow)
#Add signals of clear to LineEdit widgets to clear the texts
self.clearall.clicked.connect(self.result.clear)
self.clearall.clicked.connect(self.lname.clear)
self.clearall.clicked.connect(self.fname.clear)
self.showres.clicked.connect(self.__name)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def __name(self):
name = self.fname.text() + " " + self.lname.text()
self.result.setText("" + name + "")
def retranslate_gui(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "Name Concatenation"))
self.lastname.setText(_translate("MainWindow", "Last Name :"))
self.firstname.setText(_translate("MainWindow", "First Name :"))
self.fullname.setText(_translate("MainWindow", "Concatenated Name :-"))
self.result.setText(_translate("MainWindow", ""))
self.showres.setText(_translate("MainWindow", "Show Name!"))
self.clearall.setText(_translate("MainWindow", "Clear All"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = MainUiWindow()
ui.init_gui(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
https://codehackersblog.blogspot.com/2015/10/python-simple-pyqt5-gui-example-with-qss.html