解读代码defget_speaker_name(self): self.speaker_name=self.lineEdit_5.text() ifself.speaker_name=='': self.speaker_name='未命名'

这段代码是定义了一个名为 `get_speaker_name` 的方法。该方法会从 `lineEdit_5` 控件中获取用户输入的文本，并将其保存在 `speaker_name` 变量中。如果 `speaker_name` 变量为空，则将其设置为字符串 `"未命名"`。

其中，`self` 是类的一个实例，`lineEdit_5` 是该实例中的一个文本框控件。通过 `text()` 方法获取该文本框中的文本内容。`if` 语句判断 `speaker_name` 是否为空，如果是，则将其设置为 `"未命名"`。最后，该方法就完成了变量的设置，并没有返回值。

相关问题

import sys from PyQt5.QtWidgets import QApplication, QWidget , QMainWindow from Calui1 import Ui_Form class Mywindow(QWidget,Ui_Form): def __init__(self): super(Mywindow,self).__init__() self.setupUi(self) def btnClear_clicked(self): self.lineEdit.clear() def btn1(self): self.lineEdit.insert("1") def btn2(self): self.lineEdit.insert("2") def btn3(self): self.lineEdit.insert("3") def btn4(self): self.lineEdit.insert("4") def btn5(self): self.lineEdit.insert("5") def btn6(self): self.lineEdit.insert("6") def btn7(self): self.lineEdit.insert("7") def btn8(self): self.lineEdit.insert("8") def btn9(self): self.lineEdit.insert("9") def btn0(self): self.lineEdit.insert("0") def btn_plus(self): self.lineEdit.insert("+") def btn_sub(self): self.lineEdit.insert("-") def btn_mul(self): self.lineEdit.insert("*") def btn_div(self): self.lineEdit.insert("/") def btnequal(self): text=self.lineEdit.text() self.lineEdit.insert("= %.2f" %(eval(text))) if __name__=='__main__': app=QApplication(sys.argv) win=Mywindow() win.pushButton_7.clicked.connect(win.btnClear_clicked()) win.pushButton.clicked.connect(win.btn1()) win.pushButton_2.clicked.connect(win.btn2()) win.pushButton_3.clicked.connect(win.btn3()) win.pushButton_4.clicked.connect(win.btn_plus()) win.pushButton_5.clicked.connect(win.btn4()) win.pushButton_6.clicked.connect(win.btn7()) win.pushButton_8.clicked.connect(win.btn5()) win.pushButton_9.clicked.connect(win.btn8()) win.pushButton_10.clicked.connect(win.btn0()) win.pushButton_11.clicked.connect(win.btn6()) win.pushButton_12.clicked.connect(win.btn9()) win.pushButton_13.clicked.connect(win.btnequal()) win.pushButton_14.clicked.connect(win.btn_sub()) win.pushButton_15.clicked.connect(win.btn_mul()) win.pushButton_16.clicked.connect(win.btn_div()) win.show() sys.exit(app.exec_())错在哪

你忘记了在导入模块时使用逗号分隔，应该改为:

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QMainWindow
from Calui1 import Ui_Form

class Mywindow(QWidget,Ui_Form):
    def __init__(self):
        super(Mywindow,self).__init__()
        self.setupUi(self)
        
    def btnClear_clicked(self):
        self.lineEdit.clear()
        
    def btn1(self):
        self.lineEdit.insert("1")
        
    def btn2(self):
        self.lineEdit.insert("2")
        
    def btn3(self):
        self.lineEdit.insert("3")
        
    def btn4(self):
        self.lineEdit.insert("4")
        
    def btn5(self):
        self.lineEdit.insert("5")
        
    def btn6(self):
        self.lineEdit.insert("6")
        
    def btn7(self):
        self.lineEdit.insert("7")
        
    def btn8(self):
        self.lineEdit.insert("8")
        
    def btn9(self):
        self.lineEdit.insert("9")
        
    def btn0(self):
        self.lineEdit.insert("0")
        
    def btn_plus(self):
        self.lineEdit.insert("+")
        
    def btn_sub(self):
        self.lineEdit.insert("-")
        
    def btn_mul(self):
        self.lineEdit.insert("*")
        
    def btn_div(self):
        self.lineEdit.insert("/")
        
    def btnequal(self):
        text=self.lineEdit.text()
        self.lineEdit.insert("= %.2f" %(eval(text)))
        
if __name__=='__main__':
    app=QApplication(sys.argv)
    win=Mywindow()
    win.pushButton_7.clicked.connect(win.btnClear_clicked)
    win.pushButton.clicked.connect(win.btn1)
    win.pushButton_2.clicked.connect(win.btn2)
    win.pushButton_3.clicked.connect(win.btn3)
    win.pushButton_4.clicked.connect(win.btn_plus)
    win.pushButton_5.clicked.connect(win.btn4)
    win.pushButton_6.clicked.connect(win.btn7)
    win.pushButton_8.clicked.connect(win.btn5)
    win.pushButton_9.clicked.connect(win.btn8)
    win.pushButton_10.clicked.connect(win.btn0)
    win.pushButton_11.clicked.connect(win.btn6)
    win.pushButton_12.clicked.connect(win.btn9)
    win.pushButton_13.clicked.connect(win.btnequal)
    win.pushButton_14.clicked.connect(win.btn_sub)
    win.pushButton_15.clicked.connect(win.btn_mul)
    win.pushButton_16.clicked.connect(win.btn_div)
    win.show()
    sys.exit(app.exec_())

import sys import threading import time from PyQt5.QtWidgets import * from PyQt5 import uic import pandas as pd import random # import pyqtgraph as pg import matplotlib.pyplot as plt from PyQt5.QtWidgets import QGroupBox from PyQt5 import QtWidgets from login_4 import Ui_CK from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas # df = pd.read_excel('shu.xlsx') class MyWindow(QWidget and QMainWindow,Ui_CK): def __init__(self): super().__init__() self.init_ui() groupbox = QGroupBox('Title',self) # self.plot = pg.PlotWidget(enableAutoRange=True) # self.ui.verticalLayout.addWidget(self.plot) # self.curve = self.plot.plot() #self.ui = uic.loadUi("./login_4.ui") def init_ui(self): print('1.1') try: self.ui = uic.loadUi("./login_4.ui") #print(threading.current_thread()) #print(self.ui.__dict__) # print(self.ui.label) # print(self.ui.label.text()) # 查看ui文件中有哪些控件 # 提取要操作的控件 self.user_name_qwidget = self.ui.lineEdit # 单位输入框 self.password_qwidget = self.ui.lineEdit_2 # 二级单位输入框 self.zhicheng_qwidget = self.ui.lineEdit_3 # 职称输入框 self.jiaoyuan_qwidget = self.ui.lineEdit_4 # 教员输入框 self.login_btn = self.ui.pushButton # 登录抽课按钮 self.textBrowser = self.ui.textBrowser # 授课对象显示区域 # 绑定信号与槽函数 self.textBrowser_2 = self.ui.textBrowser_2 # 文本显示区域课程名称 self.textBrowser_3 = self.ui.textBrowser_3 # 文本显示区域课次 self.textBrowser_4 = self.ui.textBrowser_4 # 文本显示区域教研室 self.login_btn.clicked.connect(self.login) self.login_btna = self.ui.pushButton_2 self.login_btna.clicked.connect(lambda: self.plot_q()) except Exception as e: print(e.__class__.__name__, e) def login(self): print('1.2') """登录按钮的槽函数""" #print(self.user_name_qwidget.text()) a = self.user_name_qwidget.text() e = sel 为什么会报错

这是一段Python代码，通过使用import关键字导入了sys、threading、time等模块。同时，也导入了PyQt5.QtWidgets的部分类和PyQt5.uic模块。此外，还导入了pandas和random模块，用于处理数据和生成随机数等操作。