Python 和 PyQt5 並行處理功能的重疊

Question

我正在開發一個包含並行處理的程序，它必須並行執行兩個任務，並且每個任務還必須並行執行兩個任務，但是當我在執行一個任務時第一次運行程序時，程序可以工作很好，但是在執行兩個任務時會出現重疊信息。 這個問題有解決方案嗎？

代碼：

class thread_X_1(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self):
            super().__init__()
            var = Window()

class thread_X_2(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self):
            super().__init__()

            var = Window()

class Window():
    def __init__(self):
        super().__init__()
        self.pX_1 = thread_X_1()
        self.pX_2 = thread_X_2()
        
        self.pX_1.start()
        self.pX_2.start()

        self.pX_1.quit()
        self.pX_2.quit()
        
        self.pX_1.wait()
        self.pX_2.wait()

class thread_X(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self):
            super().__init__()
            var = Window()
            
class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        
        self.p1 = thread_X()
        self.p1.start()
        
        self.p2 = thread_X()
        self.p2.start()
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())

發生在我身上的是，當Qthread1和Qthread2被激活時，在正常情況下，Qthread1應該返回Qthread1_1和Qthread2_2，但這不會發生在我身上，而是Q1返回Qthread1_1，Qthread1_2，Qthread2_1，Qthread2_2。

Answer 1

我認為您的代碼沒有按您的意願工作，因為在每次調用 thread_X() 時，您都在調用 thread_X_1() 和 thread_X_2()，因此您得到 Qthread1_1、Qthread1_2、Qthread2_1、Qthread2_2。

您可以在此代碼中簽出：

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QGridLayout, QHBoxLayout, QLabel, QComboBox, QPushButton
from PyQt5.QtCore import QThread, pyqtSignal
import numpy as np

class thread_X_1(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self,num):
            super().__init__()
            print(num,"1")

            
class thread_X_2(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self,num):
            super().__init__()
            print(num,"2")

class Window():
    def __init__(self,num):
        super().__init__()
        self.pX_1 = thread_X_1(num)
        self.pX_2 = thread_X_2(num)
        
        self.pX_1.start()
        self.pX_2.start()

        self.pX_1.quit()
        self.pX_2.quit()
        
        # self.pX_1.wait()
        # self.pX_2.wait()

class thread_X(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self, num):
            super().__init__()
            var = Window(num)
            
class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        
        self.p1 = thread_X(1)
        self.p1.start()
        
        self.p2 = thread_X(2)
        self.p2.start()
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())

因此，您正在尋找的解決方案可能是您檢查要使用的線程的地方：

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QGridLayout, QHBoxLayout, QLabel, QComboBox, QPushButton
from PyQt5.QtCore import QThread, pyqtSignal
import numpy as np

class thread_X_1(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self,thread_number):
            super().__init__()
            print(thread_number,"1")
            #var = Window()

            
class thread_X_2(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self,thread_number):
            super().__init__()
            print(thread_number,"2")
            #var = Window()

class Window():
    def __init__(self,thread_number):
        super().__init__()
        if(thread_number==1):
            self.pX_1 = thread_X_1(thread_number)
            self.pX_1.start()
            self.pX_1.quit()
            self.pX_1.wait()
            
        if(thread_number==2):
            self.pX_2 = thread_X_2(thread_number)  
            self.pX_2.start()
            self.pX_2.quit()
            self.pX_2.wait()

class thread_X(QThread):
        signal = pyqtSignal(np.ndarray)
        def __init__(self, thread_number):
            super().__init__()
            var = Window(thread_number)
            
class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        
        self.p1 = thread_X(1) #Num of the thread
        self.p1.start()
        
        self.p2 = thread_X(2) #Num of the thread
        self.p2.start()
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())

告訴我此解決方案是否不適合您。