pyqt学习之ButtonGroup

Posted 2021-03-05 mosewumo

ButtonGroup即按钮组；提供一个按钮容器，可以将多个按钮划分为一组

案例

from PyQt5.Qt import *
import sys
app = QApplication(sys.argv)

window = QWidget()
window.setWindowTitle("按钮组的使用")
window.resize(500, 500)

# 男女
r_male = QRadioButton("男", window)
r_female = QRadioButton("女", window)
r_male.move(100, 100)
r_female.move(100, 150)
r_male.setChecked(True)

# 1.创建按钮组
sex_group = QButtonGroup(window)

# 2.添加按钮
sex_group.addButton(r_male, 1)
sex_group.addButton(r_female, 2)

# 是否
r_yes = QRadioButton("是", window)
r_no = QRadioButton("否", window)
r_yes.move(300, 100)
r_no.move(300, 150)
answer_group = QButtonGroup(window)
answer_group.addButton(r_yes)
answer_group.addButton(r_no)

answer_group.setId(r_yes, 1)  # 设置按钮组按钮ID
answer_group.setId(r_no, 2)

print(answer_group.id(r_yes))
print(answer_group.id(r_no))
r_no.setChecked(True)  # 默认选中
print(answer_group.checkedId())

# sex_group.setExclusive(False)  # 设置排他性

# sex_group.removeButton(r_female)  # 移除按钮


def test(val):
    # print(val)
    print(sex_group.id(val))
sex_group.buttonClicked.connect(test)  # 信号
# sex_group.buttonPressed.connect(test)
# sex_group.buttonReleased.connect(test)
# sex_group.buttonToggled.connect()
# sex_group.buttonClicked[int].connect(test) #可以传按钮ID

window.show()
sys.exit(app.exec_())

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