PyQt5基础 QLineEdit echoMode 四种回显模式UI界面文件结构代码效果主要看第四

Python : 3.8.13

OS : Windows 21H1

Conda : 4.12.0

PyCharm : 2022.1 (Community Edition)

UI界面

文件结构

C:\Users\admin\PycharmProjects\pythonProject1>tree /F
文件夹 PATH 列表
卷序列号为 B0D5-61C1
C:.
│  demo.py
│  main.py
│  untitled.py
│  untitled.ui
│
├─.idea
│  │  .gitignore
│  │  misc.xml
│  │  modules.xml
│  │  pythonProject1.iml
│  │  workspace.xml
│  │
│  └─inspectionProfiles
│          profiles_settings.xml
│
└─__pycache__
        untitled.cpython-38.pyc

代码

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(524, 457)
        MainWindow.setToolTip("")
        MainWindow.setWhatsThis("")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(60, 110, 54, 12))
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(60, 160, 54, 12))
        self.label_2.setObjectName("label_2")
        self.label_3 = QtWidgets.QLabel(self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(60, 210, 54, 12))
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(60, 270, 121, 21))
        self.label_4.setObjectName("label_4")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(210, 110, 113, 20))
        self.lineEdit.setObjectName("lineEdit")
        self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit_2.setGeometry(QtCore.QRect(210, 160, 113, 20))
        self.lineEdit_2.setEchoMode(QtWidgets.QLineEdit.NoEcho)
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.lineEdit_3 = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit_3.setGeometry(QtCore.QRect(210, 210, 113, 20))
        self.lineEdit_3.setEchoMode(QtWidgets.QLineEdit.Password)
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.lineEdit_4 = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit_4.setGeometry(QtCore.QRect(210, 270, 113, 20))

        # setEchoMode 设置回显模式，共有四种
        # Normal
        # NoEcho
        # Password
        # PasswordEchoOnEdit
        self.lineEdit_4.setEchoMode(QtWidgets.QLineEdit.PasswordEchoOnEdit)
                
        self.lineEdit_4.setObjectName("lineEdit_4")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 524, 23))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label.setText(_translate("MainWindow", "Normal"))
        self.label_2.setText(_translate("MainWindow", "NoEcho"))
        self.label_3.setText(_translate("MainWindow", "Password"))
        self.label_4.setText(_translate("MainWindow", "PasswordEchoOnEdit"))

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow

import untitled

app = QApplication(sys.argv)

window = QMainWindow()

ui = untitled.Ui_MainWindow()
ui.setupUi(window)

window.show()

sys.exit(app.exec_())

效果

主要看第四种PasswordEchoOnEdit回显模式

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