我正在使用pyqt5制作先到先得的调度程序。
我有一个主窗口，其中包含文本框，询问用户调度程序类型，单击按钮“ GO”后，将打开第二个窗口，询问用户有关调度程序的更多信息，例如进程号和突发时间。 >
单击第二个窗口上的“ GO”按钮时，在处理完信息后应显示甘特图。
问题在于第二个窗口上的按钮根本不起作用。
我找到了similar question，但是我没有找到解决方案，而且我没有使用JSON。
代码：
import sys
from PyQt5 import QtGui
from PyQt5.QtWidgets import QMainWindow,QApplication, QComboBox, QDialog,QDialogButtonBox, QFormLayout, QGridLayout, QGroupBox, QHBoxLayout,QLabel, QLineEdit, QMenu, QMenuBar, QPushButton, QSpinBox, QTextEdit,QVBoxLayoutQSpinBox, QTextEdit, QVBoxLayout
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
import matplotlib.pyplot as plt
import numpy as np
import linked_list
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("My Program")
self.setWindowIcon(QtGui.QIcon("download.jpg"))
self.setGeometry(50,50,500,300)
self.home()
self.show()
def home(self):
self.label2=QLabel(self)
self.label2.setText("Type of Scheduler")
self.label2.move(10,50)
self.textbox2=QLineEdit(self)
self.textbox2.move(100,50)
self.button=QPushButton("Go",self)
self.button.move(0,200)
self.button.clicked.connect(self.runcode)
def runcode(self):
schedular_type=self.textbox2.text()
if(schedular_type=="FCFS"):
self.close()
self.fcfs=Window2(self)
Self.fcfs.__init__()
class Window2(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("My Program")
self.setWindowIcon(QtGui.QIcon("download.jpg"))
self.setGeometry(50,50,500,300)
self.home()
self.show()
def home(self):
self.label1=QLabel(self)
self.label1.setText("No of Processes")
self.label1.move(10,0) #col ,row
self.textbox=QLineEdit(self)
self.textbox.move(100,0)
self.label3=QLabel(self)
self.label3.setText("Processess Names")
self.label3.move(10,100)
self.label4=QLabel(self)
self.label4.setText("Burst Time")
self.label4.move(120,100)
self.label5=QLabel(self)
self.label5.setText("Arrival Time")
self.label5.move(200,100)
self.names=QLineEdit(self)
self.names.move(10,150)
# self.names.resize(100,160)
self.burst=QLineEdit(self)
self.burst.move(120,150)
#self.burst.resize(100,160)
self.arrival=QLineEdit(self)
self.arrival.move(250 ,150)
#self.arrival.resize(100,160)
#self.textEdit=QTextEdit(self)
#self.textEdit.move(20,250)
self.button=QPushButton("Go",self)
self.button.move(0,200)
self.button.clicked.connect(self.fcfs)
def fcfs(self):
//
def main():
app = QApplication(sys.argv)
main = MainWindow()
main.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
答案 0 :(得分：1)
将父级设置为第二个窗口，您也将两次调用Window2的____init____方法。 这是固定代码：
import sys
from PyQt5 import QtGui
from PyQt5.QtWidgets import (QMainWindow, QApplication, QComboBox,
QDialog, QDialogButtonBox, QFormLayout, QGridLayout, QGroupBox,
QHBoxLayout, QLabel, QLineEdit, QMenu, QMenuBar, QPushButton, QSpinBox,
QTextEdit, QVBoxLayout)
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
import matplotlib.pyplot as plt
import numpy as np
import linked_list
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("My Program")
self.setWindowIcon(QtGui.QIcon("download.jpg"))
self.setGeometry(50, 50, 500, 300)
self.home()
self.show()
def home(self):
self.label2 = QLabel(self)
self.label2.setText("Type of Scheduler")
self.label2.move(10, 50)
self.textbox2 = QLineEdit(self)
self.textbox2.move(100, 50)
self.button = QPushButton("Go", self)
self.button.move(0, 200)
self.button.clicked.connect(self.runcode)
def runcode(self):
schedular_type = self.textbox2.text()
if(schedular_type == "FCFS"):
self.close()
fcfs = Window2(self)
# Do not call __init__ explicitly below
# fcfs.__init__()
class Window2(QMainWindow):
def __init__(self,parent=None):
super().__init__(parent)
# always try to set a parent
self.setWindowTitle("My Program")
self.setWindowIcon(QtGui.QIcon("download.jpg"))
self.setGeometry(50, 50, 500, 300)
self.home()
self.show()
def home(self):
self.label1 = QLabel(self)
self.label1.setText("No of Processes")
self.label1.move(10, 0) # col ,row
self.textbox = QLineEdit(self)
self.textbox.move(100, 0)
self.label3 = QLabel(self)
self.label3.setText("Processess Names")
self.label3.move(10, 100)
self.label4 = QLabel(self)
self.label4.setText("Burst Time")
self.label4.move(120, 100)
self.label5 = QLabel(self)
self.label5.setText("Arrival Time")
self.label5.move(200, 100)
self.names = QLineEdit(self)
self.names.move(10, 150)
# self.names.resize(100,160)
self.burst = QLineEdit(self)
self.burst.move(120, 150)
# self.burst.resize(100,160)
self.arrival = QLineEdit(self)
self.arrival.move(250, 150)
# self.arrival.resize(100,160)
# self.textEdit=QTextEdit(self)
# self.textEdit.move(20,250)
self.button = QPushButton("Go", self)
self.button.move(0, 200)
self.button.clicked.connect(self.fcfs)
def fcfs(self):
no_of_process = self.textbox.text()
process_names = self.names.text()
burst_time = self.burst.text()
arrival_time = self.arrival.text()
names_list = process_names.split()
burst_list = burst_time.split()
arrival_list = arrival_time.split()
# integer conversion
burst_list = [int(i) for i in burst_list]
arrival_list = [int(i) for i in arrival_list]
no_of_process = int(no_of_process)
ls = LinkedList()
i = 0
while i < no_of_process:
ls.append(names_list[i], burst_list[i], arrival_list[i])
i = i + 1
time = arrival_list[0]
j = 0
start = []
end = []
name = []
while j < (ls.size()):
while(time < arrival_list[j]):
time = time + 1
start.append(time)
time = time + burst_list[j]
end.append(time)
name.append(names_list[j])
j = j + 1
waiting_time = 0
k = 0
average_waiting = 0
while k < (ls.size()):
waiting_time = waiting_time + \
end[k] - arrival_list[k] - burst_list[k]
average_waiting = waiting_time / ls.size()
k = k + 1
x = name
begin = np.array(start)
end = np.array(end)
plt.barh(range(len(begin)), end - begin, left=begin)
plt.yticks(range(len(begin)), x)
#plt.text(0.6,1.5,('average waiting is ',average_waiting))
plt.annotate(("average waiting is", average_waiting), xy=(0.5, 1.49))
plt.show()
def main():
app = QApplication(sys.argv)
main = MainWindow()
main.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
关键部分是：
def __init__(self,parent=None):
super().__init__(parent)