PyQt5基础学习-指定特定的组件变换样式 1.QPushButton().setProperty(设置按钮的属性名)

通过设置主键的名字来构造特定按钮的组件

QSSSelector.py 

"""
使用QSS选择器设置控件样式
"""
from PyQt5.QtWidgets import *
import sys
class QSSSelector(QWidget):
    def __init__(self):
        super(QSSSelector, self).__init__()
        self.setWindowTitle("QSS样式")
        btn1 = QPushButton(self)
        btn1.setText("按钮1")
        btn2 = QPushButton(self)
        btn2.setProperty("name", "btn2")
        btn2.setText("按钮2")

        btn3 = QPushButton(self)
        btn3.setProperty("name", "btn3")
        btn3.setText("按钮3")

        vbox = QVBoxLayout()
        vbox.addWidget(btn1)
        vbox.addWidget(btn2)
        vbox.addWidget(btn3)

        self.setLayout(vbox)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = QSSSelector()
    #选择器
    qssStyle = """
        QPushButton[name="btn2"] {
            background-color:red;
            color:yellow; 
            height:120; 
            font-size:60px;
        }
        QPushButton[name="btn3"] {
            background-color:blue;
            color:yellow; 
            height:60; 
            font-size:30px;
        }
    """
    form.setStyleSheet(qssStyle)
    form.show()
    sys.exit(app.exec_())