Question

我有这个代码，想按下按钮并在QTextEdit小部件（ted）中显示结果后进行一些计算。一切都运作良好，但如果我运行程序并按下按钮（按钮1）它会崩溃。

知道我的代码有什么问题吗？

非常感谢您的回答！

代码在这里：

{{1}}

Answer 1

无法从ted访问on_click1变量，您必须使用自我实例来使用它，将ted替换为self.ted。

完整代码：

import sys
import numpy as np
import matplotlib.pyplot as plt
from scipy import stats
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QFileDialog, QTextEdit
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot

class App(QWidget):

    def __init__(self):
        super().__init__()
        self.title = 'STATISTICIAN'
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(100, 100, 600, 600)

        button1 = QPushButton('1D statistics', self)
        button1.setToolTip('Start calculations of 1D statistics')
        button1.move(50, 25)
        button1.resize(500,70)
        button1.clicked.connect(self.on_click1)

        button2 = QPushButton('2D statistics', self)
        button2.setToolTip('Start calculations of 2D statistics')
        button2.move(50, 105)
        button2.resize(500,70)
        button2.clicked.connect(self.on_click2)

        self.ted = QTextEdit(self)
        self.ted.move(50, 250)
        self.ted.resize(500, 250)
        self.ted.setReadOnly(True)
        scrb = self.ted.verticalScrollBar()
        scrb.setValue(scrb.maximum())

        self.show()

    def on_click1(self):
        # Reading of data from file will be here
        # Some calculations will be here
        text = 'Results are:' # There will be finally more text
        self.ted.insertPlainText(text) # I'm trying to show results in QTextEdit (ted)

    def on_click2(self):
        print('2D statistics')
        print()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())

我的Python 3 / PyQt5代码出了什么问题？

1 个答案: