我只需要知道如何将输入到QLine中的值链接到变量。我尝试过各种方法,比如returnPressed(),但都没用。 我已经检查了其他问题,但我想避免事件过滤器。谢谢
from PySide.QtGui import *
from PySide.QtCore import *
window = QWidget()
window.resize(500,300)
window.setWindowTitle('converter')
layout1 = QHBoxLayout()
layout2 = QVBoxLayout()
box = QComboBox()
box.addItems(['lenght','area','volume'])
box.setCurrentIndex(-1)
box.setObjectName('UNIT')
layout1.addWidget(box)
box2 = QComboBox()
box.setObjectName('FROM')
layout1.addWidget(box2)
line1 = QLineEdit()
line1.setObjectName('num1')
layout1.addWidget(line1)
box3 = QComboBox()
box3.setObjectName('TO')
layout1.addWidget(box3)
label = QLabel()
label.setObjectName('num2')
layout2.addLayout(layout1)
layout2.addWidget(label)
window.setLayout(layout2)
def changeValues():
if box.currentIndex() == 0:
box2.clear()
box3.clear()
box2.addItems(['km', 'km', 'cm', 'mm'])
box3.addItems(['km', 'm', 'cm', 'mm'])
elif box.currentIndex() == 1:
box2.clear()
box3.clear()
box2.addItems(['km2', 'e', 'm2', 'cm2', 'mm2'])
box3.addItems(['km2', 'e', 'm2', 'cm2', 'mm2'])
elif box.currentIndex() == 2:
box2.clear()
box3.clear()
box2.addItems(['m3', 'cm3', 'mm3', 'l', 'dl', 'cl', 'ml'])
box3.addItems(['m3', 'cm3', 'mm3', 'l', 'dl', 'cl', 'ml'])
box.currentIndexChanged.connect(changeValues)
window.show()
目前没有回答
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