pyqt button seticonsize

您可以使用 `setIconSize()` 方法来设置 PyQT 中按钮的图标大小。例如，以下代码将按钮的图标大小设置为 64x64：

button = QPushButton()
button.setIcon(QIcon("icon.png"))
button.setIconSize(QSize(64, 64))

这将使按钮的图标大小为 64x64 像素。您可以根据您的需要更改大小。

相关问题

按钮和标签相互遮挡，该如何修改下列代码：from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QPushButton, QGridLayout from PyQt5.QtGui import QPixmap,QIcon,QPixmap from PyQt5.QtCore import QSize app = QApplication([]) window = QWidget() window.setWindowTitle('贩卖车') label = QLabel('请选择您要购买的饮料或食品：') button1 = QPushButton() button1.setIcon(QIcon(QPixmap('coke.png'))) button1.setIconSize(QSize(100, 100)) button2 = QPushButton() button2.setIcon(QIcon(QPixmap('water.png'))) button2.setIconSize(QSize(100, 100)) button3 = QPushButton() button3.setIcon(QIcon(QPixmap('chips.png'))) button3.setIconSize(QSize(100, 100)) button4 = QPushButton() button4.setIcon(QIcon(QPixmap('chocolate.png'))) button4.setIconSize(QSize(100, 100)) button5 = QPushButton() button5.setIcon(QIcon(QPixmap('coke.png'))) button5.setIconSize(QSize(100, 100)) button6 = QPushButton() button6.setIcon(QIcon(QPixmap('water.png'))) button6.setIconSize(QSize(100, 100)) button7 = QPushButton() button7.setIcon(QIcon(QPixmap('chips.png'))) button7.setIconSize(QSize(100, 100)) button8 = QPushButton() button8.setIcon(QIcon(QPixmap('chocolate.png'))) button8.setIconSize(QSize(100, 100)) button9 = QPushButton() button9.setIcon(QIcon(QPixmap('chocolate.png'))) button9.setIconSize(QSize(100, 100)) button10 = QPushButton() button10.setIcon(QIcon(QPixmap('chocolate.png'))) button10.setIconSize(QSize(100, 100)) count_label1 = QLabel('0') count_label2 = QLabel('0') count_label3 = QLabel('0') count_label4 = QLabel('0') count_label5 = QLabel('0') count_label6 = QLabel('0') count_label7 = QLabel('0') count_label8 = QLabel('0') count_label9 = QLabel('0') count_label10 = QLabel('0') layout = QGridLayout() layout.addWidget(label, 0, 0, 1, 5) layout.addWidget(count_label1, 1, 0) layout.addWidget(count_label2, 1, 1) layout.addWidget(count_label3, 1, 2) layout.addWidget(count_label4, 1, 3) layout.addWidget(count_label5, 1, 4) layout.addWidget(count_label6, 2, 0) layout.addWidget(count_label7, 2, 1) layout.addWidget(count_label8, 2, 2) layout.addWidget(count_label9, 2, 3) layout.addWidget(count_label10, 2, 4) layout.addWidget(button1, 1, 0) layout.addWidget(button2, 1, 1) layout.addWidget(button3, 1, 2) layout.addWidget(button4, 1, 3) layout.addWidget(button5, 1, 4) layout.addWidget(button6, 2, 0) layout.addWidget(button7, 2, 1) layout.addWidget(button8, 2, 2) layout.addWidget(button9, 2, 3) layout.addWidget(button10, 2, 4) layout.setColumnStretch(0, 1) layout.setColumnStretch(4,1)

您可以通过设置按钮和标签的层级关系来解决按钮和标签相互遮挡的问题。可以使用QWidget的raise()方法将按钮提升到最上层，或者使用QWidget的lower()方法将标签降低到最下层。

对于这段代码，您可以尝试将以下内容添加到每个按钮的设置图标和大小的代码之后，使用raise()方法将按钮提升到最上层：

button1.raise_()
button2.raise_()
button3.raise_()
button4.raise_()
button5.raise_()
button6.raise_()
button7.raise_()
button8.raise_()
button9.raise_()
button10.raise_()

如果以上方法无效，您还可以尝试将标签的放置位置稍微调整一下，例如将layout.addWidget(label, 0, 0, 1, 5)改为layout.addWidget(label, 0, 0, 1, 4)，让标签所占的列数比按钮少一列。

希望这些方法能够帮助您解决问题。

pyqt5 将button设置为按下去变颜色

您可以使用QPushButton的pressed和released信号来实现按下按钮时改变颜色的效果。具体实现如下：

from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import Qt

class Example(QWidget):
    
    def __init__(self):
        super().__init__()
        
        self.initUI()
        
        
    def initUI(self):
        
        self.setGeometry(300, 300, 300, 200)
        self.setWindowTitle('Button Example')
        
        btn = QPushButton('Button', self)
        btn.setGeometry(100, 100, 100, 50)
        btn.setIcon(QIcon('icon.png'))
        btn.setIconSize(btn.size())
        
        btn.setStyleSheet("QPushButton {background-color: #4CAF50; color: white; border: none;}"
                          "QPushButton:pressed {background-color: #3e8e41;}")
        
        self.show()
        

if __name__ == '__main__':
    
    app = QApplication([])
    ex = Example()
    app.exec_()

在这个示例中，我们在QPushButton的样式表中使用了两个样式，一个用于正常状态的按钮，一个用于按下按钮时的状态。pressed样式指定了按下按钮时的背景颜色。