pyqt5编写一个账号密码登录可跳转的界面程序
求大神帮忙 一个用pyqt5 实现一个可输入账号密码登录实现跳转到主界面的代码，萌新一枚 我好像写过，等我回去可以找找看 小酒酒 发表于 2018-6-11 09:15我好像写过，等我回去可以找找看
谢谢了，刚学这个感觉有点懵 才想起来😂😂sorry，找了找，还好，还在。解释一下吧，当初设计时好像把账号和密码都存在本地的txt文档里了，然后注册新账号那个窗口好像写的很随意。你大概看看吧登录窗口：
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from Shop_main import *
class denglu(QWidget):
"""
登录窗口 ：程序的入口
登录窗口的内容包括两个tabel标签："账号"、"密码"，两个输入框分别用来输入账号及密码
两个按钮：确定和退出，一个radiobutton用来设置密码的显示格式，一个显示标签用来创建新的账号
密码在输入时应该默认为掩码输入，点击radiobutton时可以切换密码显示格式
点击显示标签"创建新用户"时弹出创建窗口
创建新账号时应该进行核查：账号不许为空不许重复，密码不许为空
创建完成时把账号及密码存储在本地文件中：账号.txt、密码.txt并退出关闭创建窗口
登录时应核查账号与密码的匹配，并根据各种出错情况给出相应的提示信息
登陆成功时进入主页面并自动退出关闭登录窗口
"""
def __init__(self):
super(denglu, self).__init__()
self.setGeometry(300, 300, 400, 247)
#登录窗口无边界
self.setWindowFlags(Qt.FramelessWindowHint)
#登录窗口透明
self.setAttribute(Qt.WA_TranslucentBackground, True)
#定义多个空label
self.label_null1 = QLabel()
self.label_null2 = QLabel()
self.label_null3 = QLabel()
self.label_null4 = QLabel()
self.label_new = QLabel()
#定义创建新账户标签并设置信号槽绑定事件
self.label_new.setText("<a href='#'>注册新用户</a>")
self.label_new.setStyleSheet('''color: rgb(253,129,53);''')
self.label_new.linkActivated.connect(self.idnew)
#设置隐藏密码RadioButton
self.btn_check = QRadioButton("显示密码")
self.btn_check.setStyleSheet('''color: rgb(253,129,53);;''')
self.btn_check.clicked.connect(self.yanma)
#登录与退出按钮，设置按钮颜色及事件绑定
self.btn_denglu = QPushButton("登录")
self.btn_quxiao = QPushButton("退出")
self.btn_denglu.setStyleSheet('''color: white;
background-color: rgb(218,181,150);''')
self.btn_quxiao.setStyleSheet('''color: white;
background-color: rgb(218,181,150);''')
self.btn_denglu.clicked.connect(self.check)
self.btn_quxiao.clicked.connect(self.quxiao)
#账号和密码
self.lineedit_id = QLineEdit()
self.lineedit_id.setPlaceholderText("账号")
self.lineedit_password = QLineEdit()
self.lineedit_password.setEchoMode(QLineEdit.Password)
self.lineedit_password.setPlaceholderText("密码")
#布局设置
layout = QHBoxLayout(self)
wid_denglu_right = QWidget()
wid_denglu_left = QLabel()
g = QGridLayout()
g.addWidget(self.lineedit_id, 1, 1, 1, 2)
g.addWidget(self.lineedit_password, 2, 1, 1, 2)
g.addWidget(self.btn_check, 3, 1)
g.addWidget(self.btn_denglu, 4, 1)
g.addWidget(self.btn_quxiao, 4, 2)
g.addWidget(self.label_null1, 5, 1)
g.addWidget(self.label_null2, 6, 1)
g.addWidget(self.label_null3, 7, 1)
g.addWidget(self.label_null4, 8, 1)
g.addWidget(self.label_new, 9, 2 )
wid_denglu_right.setLayout(g)
layout.addWidget(wid_denglu_left)
layout.addWidget(wid_denglu_right)
self.setLayout(layout)
#密码隐藏
def yanma(self):
if self.btn_check.isChecked():
self.lineedit_password.setEchoMode(QLineEdit.Normal)
else:
self.lineedit_password.setEchoMode(QLineEdit.Password)
#登录时核查账号及密码是否正确
def check(self):
temp = False
self.id_password = {}
id = open("账号.txt")
password = open("密码.txt")
i = 0
for line1 in id:
m = i+1
for line2 in password:
i = i+1
if i == m:
self.id_password=line2
break
if i < m:
continue
#如果输入账号不在账号表文件中，则推送消息框提醒
if self.lineedit_id.text()+"\n" not in self.id_password:
replay = QMessageBox.warning(self, "!", "账号或密码输入错误", QMessageBox.Yes)
else:
if self.id_password == self.lineedit_password.text()+"\n":
#账号密码验证成功，创建主界面，进入信息管理程序,并关闭登录窗口
self.shop = Shopmain()
self.shop.show()
self.close()
else:
replay = QMessageBox.warning(self, "!", "账号或密码输入错误", QMessageBox.Yes)
id.close()
password.close()
#创建新的账号
def idnew(self):
self.label_idnew_id = QLabel("账号")
self.label_idnew_password = QLabel("密码")
self.lineedit_idnew_id = QLineEdit()
self.lineedit_idnew_password = QLineEdit()
self.btn_idnew_quren = QPushButton("注册")
self.btn_idnew_quren.clicked.connect(self.idnewqueren)
self.btn_idnew_quxiao = QPushButton("取消")
self.btn_idnew_quxiao.clicked.connect(self.idnewclose)
self.idnew = QWidget()
layout_idnew = QGridLayout()
layout_idnew.addWidget(self.label_idnew_id, 1, 0)
layout_idnew.addWidget(self.label_idnew_password, 2, 0)
layout_idnew.addWidget(self.lineedit_idnew_id, 1, 1, 1, 2)
layout_idnew.addWidget(self.lineedit_idnew_password, 2, 1, 1, 2)
layout_idnew.addWidget(self.btn_idnew_quren, 3, 1)
layout_idnew.addWidget(self.btn_idnew_quxiao, 3, 2)
self.idnew.setLayout(layout_idnew)
self.idnew.move(self.pos())
self.idnew.resize(200, 133)
self.idnew.setWindowFlags(Qt.FramelessWindowHint)
self.paintEvent(self)
self.idnew.setStyleSheet("background-color :rgb(253,216,174)")
self.idnew.show()
#新账号注册的确认
def idnewqueren(self):
id = open("账号.txt", "r+")
password = open("密码.txt", "r+")
self.id_password = {}
i = 0
for line1 in id:
m = i+1
for line2 in password:
i = i+1
if i == m:
self.id_password=line2
break
if i < m:
continue
ifself.lineedit_idnew_id.text() == "":
replay = QMessageBox.warning(self, "!", "账号不准为空", QMessageBox.Yes)
else:
if self.lineedit_idnew_id.text()+"\n" in self.id_password:
replay = QMessageBox.warning(self, "!", "账号已存在", QMessageBox.Yes)
else:
if self.lineedit_idnew_password.text() == "":
replay = QMessageBox.warning(self, "!", "密码不准为空", QMessageBox.Yes)
else:
id.write(self.lineedit_idnew_id.text()+"\n")
password.write(self.lineedit_idnew_password.text()+"\n")
replay = QMessageBox.warning(self, "!", "注册成功！", QMessageBox.Yes)
self.idnew.close()
id.close()
password.close()
#添加背景图片
def paintEvent(self, event):
painter = QPainter(self)
pixmap = QPixmap("denglu.jpg")
painter.drawPixmap(self.rect(), pixmap)
#关闭创新账号窗口
def idnewclose(self):
self.idnew.close()
#取消创建新账号，并退出创建窗口
def quxiao(self):
sys.exit()
if __name__ == "__main__":
app = QApplication(sys.argv)
d = denglu()
d.show()
sys.exit(app.exec()) 本帖最后由 supper蛋蛋 于 2021-4-21 20:01 编辑
为啥我的输入和txt里的判断，总是不行，
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