解释这段代码：def on_search(self): name = self.lineEdit_name.text()

这段代码是一个 Python 函数 `on_search` 的定义，其目的是用来获取用户在 GUI 界面中输入的名字，即文本框 `lineEdit_name` 中的文本内容。具体来说，通过 `self.lineEdit_name.text()` 可以获取到文本框中的内容，并将其赋值给变量 `name`。该函数可以用来响应用户的搜索操作，并将搜索关键词传递给其他相关的函数进行处理和查询操作。

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详细解释 def login_click(self): user_name = self.loginWindow.lineEdit.text() password = self.loginWindow.lineEdit_2.text()

这段代码是一个登录按钮的点击事件处理函数，用于获取用户在登录窗口中输入的用户名和密码。具体来说，该函数通过self.loginWindow.lineEdit.text()方法获取了登录窗口中的用户名输入框（QLineEdit）中的文本，将其赋值给变量user_name；通过self.loginWindow.lineEdit_2.text()方法获取了登录窗口中的密码输入框中的文本，将其赋值给变量password。在这个例子中，我们假设登录窗口中的用户名输入框和密码输入框分别被命名为lineEdit和lineEdit_2。通过这种方式获取用户输入的用户名和密码，我们可以将其用于后续的身份验证或者其他处理。需要注意的是，该函数只是获取了用户输入的用户名和密码，并未对其进行任何处理，因此需要在后续的代码中进一步处理这些数据。

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_())