PyQt

目录

signal 和 slot

基本操作

from PySide2.QtWidgets import QApplication, QMainWindow, QPushButton,  QPlainTextEdit,QMessageBox

def handleCalc():										# 槽
    info = textEdit.toPlainText()

    # 薪资20000 以上 和 以下 的人员名单
    salary_above_20k = ''
    salary_below_20k = ''
    for line in info.splitlines():
        if not line.strip():
            continue
        parts = line.split(' ')
        # 去掉列表中的空字符串内容
        parts = [p for p in parts if p]
        name,salary,age = parts
        if int(salary) >= 20000:
            salary_above_20k += name + '\n'
        else:
            salary_below_20k += name + '\n'

    QMessageBox.about(window,
                '统计结果',
                f'''薪资20000 以上的有：\n{salary_above_20k}
                \n薪资20000 以下的有：\n{salary_below_20k}'''
                )

app = QApplication([])

window = QMainWindow()
window.resize(500, 400)
window.move(300, 300)
window.setWindowTitle('薪资统计')

textEdit = QPlainTextEdit(window)
textEdit.setPlaceholderText("请输入薪资表")
textEdit.move(10,25)
textEdit.resize(300,350)

button = QPushButton('统计', window)
button.move(380,80)
button.clicked.connect(handleCalc)						# connect

window.show()

app.exec_()

对比原版QT

• 不需要QObject宏？
• 不需要声明为槽，可直接指定函数为槽