我正在使用未加权GPA计算器,并且对(Py)Qt Designer应用程序还是有点陌生。我遇到了一个问题,我不知道如何从ComboBoxes中获取结果以将其计算为名为gpa的变量。
基本上,这就是我想发生的事情:
如果letter_grade1 ComboBox是A +,则它将gpa加4.0
如果letter_grade2 ComboBox是B,则它将gpa加3.0
之后,它将除以5,因为将打印5个ComboBox,计算结果将被打印出来,而这一切都在单击commit_grades按钮之后发生。
这是Ui外观的图像:
代码如下所示:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_unweight5(object):
def setupUi(self, unweight5):
unweight5.setObjectName("unweight5")
unweight5.resize(424, 228)
self.centralwidget = QtWidgets.QWidget(unweight5)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setHorizontalSpacing(10)
self.gridLayout.setVerticalSpacing(5)
self.gridLayout.setObjectName("gridLayout")
self.assessment_name = QtWidgets.QLineEdit(self.centralwidget)
self.assessment_name.setObjectName("assessment_name")
self.gridLayout.addWidget(self.assessment_name, 1, 0, 1, 1)
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
self.submit_grades = QtWidgets.QPushButton(self.centralwidget)
self.submit_grades.setObjectName("submit_grades")
self.gridLayout.addWidget(self.submit_grades, 6, 0, 1, 3)
self.assessment_name5 = QtWidgets.QLineEdit(self.centralwidget)
self.assessment_name5.setObjectName("assessment_name5")
self.gridLayout.addWidget(self.assessment_name5, 5, 0, 1, 1)
self.assessment_name2 = QtWidgets.QLineEdit(self.centralwidget)
self.assessment_name2.setObjectName("assessment_name2")
self.gridLayout.addWidget(self.assessment_name2, 2, 0, 1, 1)
self.assessment_name4 = QtWidgets.QLineEdit(self.centralwidget)
self.assessment_name4.setObjectName("assessment_name4")
self.gridLayout.addWidget(self.assessment_name4, 4, 0, 1, 1)
self.assessment_name3 = QtWidgets.QLineEdit(self.centralwidget)
self.assessment_name3.setObjectName("assessment_name3")
self.gridLayout.addWidget(self.assessment_name3, 3, 0, 1, 1)
self.letter_grade5 = QtWidgets.QComboBox(self.centralwidget)
self.letter_grade5.setObjectName("letter_grade5")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.letter_grade5.addItem("")
self.gridLayout.addWidget(self.letter_grade5, 5, 1, 1, 2)
self.letter_grade3 = QtWidgets.QComboBox(self.centralwidget)
self.letter_grade3.setObjectName("letter_grade3")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.letter_grade3.addItem("")
self.gridLayout.addWidget(self.letter_grade3, 3, 1, 1, 2)
self.letter_grade4 = QtWidgets.QComboBox(self.centralwidget)
self.letter_grade4.setObjectName("letter_grade4")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.letter_grade4.addItem("")
self.gridLayout.addWidget(self.letter_grade4, 4, 1, 1, 2)
self.letter_grade2 = QtWidgets.QComboBox(self.centralwidget)
self.letter_grade2.setObjectName("letter_grade2")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.letter_grade2.addItem("")
self.gridLayout.addWidget(self.letter_grade2, 2, 1, 1, 2)
self.letter_grade1 = QtWidgets.QComboBox(self.centralwidget)
self.letter_grade1.setObjectName("letter_grade1")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.letter_grade1.addItem("")
self.gridLayout.addWidget(self.letter_grade1, 1, 1, 1, 2)
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setAlignment(QtCore.Qt.AlignCenter)
self.label_3.setObjectName("label_3")
self.gridLayout.addWidget(self.label_3, 0, 1, 1, 2)
unweight5.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(unweight5)
self.menubar.setGeometry(QtCore.QRect(0, 0, 424, 22))
self.menubar.setObjectName("menubar")
unweight5.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(unweight5)
self.statusbar.setObjectName("statusbar")
unweight5.setStatusBar(self.statusbar)
self.retranslateUi(unweight5)
QtCore.QMetaObject.connectSlotsByName(unweight5)
def retranslateUi(self, unweight5):
_translate = QtCore.QCoreApplication.translate
unweight5.setWindowTitle(_translate("unweight5", "Unweighted Calculator"))
self.label.setText(_translate("unweight5", "Course Name"))
self.submit_grades.setText(_translate("unweight5", "Submit"))
self.letter_grade5.setItemText(0, _translate("unweight5", "A+"))
self.letter_grade5.setItemText(1, _translate("unweight5", "A"))
self.letter_grade5.setItemText(2, _translate("unweight5", "A-"))
self.letter_grade5.setItemText(3, _translate("unweight5", "B+"))
self.letter_grade5.setItemText(4, _translate("unweight5", "B"))
self.letter_grade5.setItemText(5, _translate("unweight5", "B-"))
self.letter_grade5.setItemText(6, _translate("unweight5", "C+"))
self.letter_grade5.setItemText(7, _translate("unweight5", "C"))
self.letter_grade5.setItemText(8, _translate("unweight5", "C-"))
self.letter_grade5.setItemText(9, _translate("unweight5", "D+"))
self.letter_grade5.setItemText(10, _translate("unweight5", "D"))
self.letter_grade5.setItemText(11, _translate("unweight5", "F"))
self.letter_grade3.setItemText(0, _translate("unweight5", "A+"))
self.letter_grade3.setItemText(1, _translate("unweight5", "A"))
self.letter_grade3.setItemText(2, _translate("unweigt5", "A-"))
self.letter_grade3.setItemText(3, _translate("unweight5", "B+"))
self.letter_grade3.setItemText(4, _translate("unweight5", "B"))
self.letter_grade3.setItemText(5, _translate("unweight5", "B-"))
self.letter_grade3.setItemText(6, _translate("unweight5", "C+"))
self.letter_grade3.setItemText(7, _translate("unweight5", "C"))
self.letter_grade3.setItemText(8, _translate("unweight5", "C-"))
self.letter_grade3.setItemText(9, _translate("unweight5", "D+"))
self.letter_grade3.setItemText(10, _translate("unweight5", "D"))
self.letter_grade3.setItemText(11, _translate("unweight5", "F"))
self.letter_grade4.setItemText(0, _translate("unweight5", "A+"))
self.letter_grade4.setItemText(1, _translate("unweight5", "A"))
self.letter_grade4.setItemText(2, _translate("unweight5", "A-"))
self.letter_grade4.setItemText(3, _translate("unweight5", "B+"))
self.letter_grade4.setItemText(4, _translate("unweight5", "B"))
self.letter_grade4.setItemText(5, _translate("unweight5", "B-"))
self.letter_grade4.setItemText(6, _translate("unweight5", "C+"))
self.letter_grade4.setItemText(7, _translate("unweight5", "C"))
self.letter_grade4.setItemText(8, _translate("unweight5", "C-"))
self.letter_grade4.setItemText(9, _translate("unweight5", "D+"))
self.letter_grade4.setItemText(10, _translate("unweight5", "D"))
self.letter_grade4.setItemText(11, _translate("unweight5", "F"))
self.letter_grade2.setItemText(0, _translate("unweight5", "A+"))
self.letter_grade2.setItemText(1, _translate("unweight5", "A"))
self.letter_grade2.setItemText(2, _translate("unweight5", "A-"))
self.letter_grade2.setItemText(3, _translate("unweight5", "B+"))
self.letter_grade2.setItemText(4, _translate("unweight5", "B"))
self.letter_grade2.setItemText(5, _translate("unweight5", "B-"))
self.letter_grade2.setItemText(6, _translate("unweight5", "C+"))
self.letter_grade2.setItemText(7, _translate("unweight5", "C"))
self.letter_grade2.setItemText(8, _translate("unweight5", "C-"))
self.letter_grade2.setItemText(9, _translate("unweight5", "D+"))
self.letter_grade2.setItemText(10, _translate("unweight5", "D"))
self.letter_grade2.setItemText(11, _translate("unweight5", "F"))
self.letter_grade1.setItemText(0, _translate("unweight5", "A+"))
self.letter_grade1.setItemText(1, _translate("unweight5", "A"))
self.letter_grade1.setItemText(2, _translate("unweight5", "A-"))
self.letter_grade1.setItemText(3, _translate("unweight5", "B+"))
self.letter_grade1.setItemText(4, _translate("unweight5", "B"))
self.letter_grade1.setItemText(5, _translate("unweight5", "B-"))
self.letter_grade1.setItemText(6, _translate("unweight5", "C+"))
self.letter_grade1.setItemText(7, _translate("unweight5", "C"))
self.letter_grade1.setItemText(8, _translate("unweight5", "C-"))
self.letter_grade1.setItemText(9, _translate("unweight5", "D+"))
self.letter_grade1.setItemText(10, _translate("unweight5", "D"))
self.letter_grade1.setItemText(11, _translate("unweight5", "F"))
self.label_3.setText(_translate("unweight5", "Grade"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
unweight5 = QtWidgets.QMainWindow()
ui = Ui_unweight5()
ui.setupUi(unweight5)
unweight5.show()
sys.exit(app.exec_())
谢谢你的时间!
参考方案
假设您采样的.py文件称为design.py,则必须创建另一个.py文件,其逻辑将是避免在单个文件中包含多行代码。
解决问题的办法是创建一个“查看表”,其中选项与通过字典的值相关,然后计算平均值。
from PyQt5 import QtCore, QtGui, QtWidgets
from design import Ui_unweight5
class Unweight5(QtWidgets.QMainWindow, Ui_unweight5):
def __init__(self, parent=None):
super(Unweight5, self).__init__(parent)
self.setupUi(self)
self.lut = {"A+": 4.0,
"A": 3.5,
"A-": 3.2,
"B+": 3.0,
"B": 2.8,
"B-": 2.7,
"C+": 2.5,
"C": 2.1,
"C-": 1.5,
"D+": 1,
"D": 0.6,
"F": 0.4}
self.submit_grades.clicked.connect(self.on_clicked)
def on_clicked(self):
combos = (self.letter_grade1, self.letter_grade2, self.letter_grade3, self.letter_grade4, self.letter_grade5)
vals = [self.lut[combo.currentText()] for combo in combos]
print("results:", sum(vals)/len(vals))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = Unweight5()
w.show()
sys.exit(app.exec_())
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