image.png
-- coding: utf-8 --
'''
【简介】
PyQt5中 QSpinBox 例子
'''
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class spindemo(QWidget):
def init(self, parent=None):
super(spindemo, self).init(parent)
self.setWindowTitle("SpinBox 例子")
self.resize(300, 100)
layout = QVBoxLayout()
self.l1 = QLabel("current value:")
self.l1.setAlignment(Qt.AlignCenter)
layout.addWidget(self.l1)
self.sp = QSpinBox()
layout.addWidget(self.sp)
self.sp.valueChanged.connect(self.valuechange)
self.setLayout(layout)
def valuechange(self):
self.l1.setText("current value:" + str(self.sp.value()))
if name == 'main':
app = QApplication(sys.argv)
ex = spindemo()
ex.show()
sys.exit(app.exec_())
