这篇文章主要为大家展示了怎么实现PyQt5控件字体样式等设置，内容简而易懂，希望大家可以学习一下，学习完之后肯定会有收获的，下面让小编带大家一起来看看吧。

创新互联公司作为成都网站建设公司，专注重庆网站建设公司、网站设计，有关成都定制网页设计方案、改版、费用等问题，行业涉及成都不锈钢雕塑等多个领域，已为上千家企业服务，得到了客户的尊重与认可。

一、API接口设置

比如我这段代码中的一些设置，设置文字、居中、禁止复制、LineEdit输入为password等等

import sys

from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QFrame
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QTextEdit
from PyQt5.QtWidgets import QSizePolicy
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QApplication




from View import interface

class MainWindow(QMainWindow):

  def __init__(self):
    super(MainWindow,self).__init__(None)
    self.setWindowTitle("对金属腐蚀性试验仪")
    self.initUI()

  def initUI(self):
    layout = QGridLayout()
    layout.setSpacing(10)
    self.loginLabel = QLabel("用户名：")
    self.loginLabel.setAlignment(Qt.AlignRight)
    self.loginLabel.setStyleSheet("color:rgb(20,20,20,255);font-size:16px;font-weight:bold:text")
    self.loginTxt = QLineEdit()
    self.loginTxt.setText("admin")
    self.loginTxt.setPlaceholderText("User Name")
    self.loginTxt.setClearButtonEnabled(True)
    self.pwdLabel = QLabel("密码：")
    self.pwdLabel.setAlignment(Qt.AlignRight)
    self.pwdTxt = QLineEdit()
    self.pwdTxt.setContextMenuPolicy(Qt.NoContextMenu) #禁止复制粘贴
    self.pwdTxt.setPlaceholderText("Password")
    self.pwdTxt.setText("admin")
    self.pwdTxt.setEchoMode(QLineEdit.Password)
    self.pwdTxt.setClearButtonEnabled(True)
    self.registeredBtn = QPushButton("注册")
    self.loginBtn = QPushButton("登陆")

    self.headLabel = QLabel("用户登陆")
    self.headLabel.resize(300,30)
    self.headLabel.setAlignment(Qt.AlignCenter)
    self.headLabel.setStyleSheet("color:rgb(10,10,10,255);font-size:25px;font-weight:bold;font-family:Roman times;")

    self.headLabel.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
    layout.addWidget(self.headLabel,0,0,1,2)
    policy = self.headLabel.sizePolicy()
    print(policy.verticalPolicy())
    policy.setVerticalPolicy(1)
    print(policy.verticalPolicy())
    # policy.setVerticalPolicy(1)
    layout.addWidget(self.loginLabel,1,0)
    layout.addWidget(self.loginTxt,1,1)
    layout.addWidget(self.pwdLabel,2,0)
    layout.addWidget(self.pwdTxt,2,1)
    layout.addWidget(self.registeredBtn,3,0)
    layout.addWidget(self.loginBtn,3,1)

    frame = QFrame(self)
    frame.setLayout(layout)
    self.setCentralWidget(frame)
    self.resize(300,150)

if __name__ == '__main__':
  app = QApplication(sys.argv)
  mainWindow = MainWindow()
  mainWindow.show()
  mainWindow.activateWindow()
  mainWindow.raise_()
  app.exec_()
  del mainWindow
  del app

网站名称：怎么实现PyQt5控件字体样式等设置-创新互联
URL网址：http://hbruida.cn/article/eeedp.html