PyQt5控件字体样式等设置如何实现 PyQt5控件字体样式等设置实现代码

PyQt5控件字体样式等设置如何实现？本篇文章小编给大家分享一下PyQt5控件字体样式等设置实现代码，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

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

1.1.0 QLineEdit一些属性

inputMask设置掩码

text 设置文本

maxLength文本框输入的最大字符数

frame 设置边框

echoMode 设置文本框显示格式

Normal正常显示所输入的字符，此为默认选项

NoEcho不显示任何输入的字符，常用于密码类型的输入，且长度保密

Password显示与平台相关的密码掩饰字符，而不是实际输入的字符

PasswordEchoOnEdit在编辑时显示字符，负责显示密码类型的输入

cursorPosition光标位置

alignment文本对齐方式

AlignLeft左对齐

AlignRight右对齐

AlignCenter水平居中对齐

AlignJustify水平方向调整间距两端对齐

AlignTop垂直上对齐

AlignBottom垂直方下对齐

AlignVCenter垂直方向居中对齐

dragEnabled设置文本框是否接受拖动

readOnly设置文本为只读

placeholderText设置文本框提示文字

cursorMoveStyle光标移动风格

LogicalMoveStyle逻辑风格

VisualMoveStyle视觉风格

clearButtonEnabled快速删除按钮

参考文章,QLineEdit属性、信号、方法等

1.1 常用的一些设置

setClearButtonEnabled(self, bool): 是否有清除文本按钮(如我第一段程序文本框后的 小黑X)

setCompleter(self, QCompleter):设置自动补全QLineEdit自动补全

setCursorMoveStyle(self, Qt_CursorMoveStyle):

setCursorPosition(self, p_int):

setDragEnabled(self, bool):

setEchoMode(self, QLineEdit_EchoMode):

setFrame(self, bool):

setInputMask(self, p_str):

setMaxLength(self, p_int):

setModified(self, bool):

setPlaceholderText(self, p_str):

setReadOnly(self, bool):

setSelection(self, p_int, p_int_1):

setText(self, p_str):

setTextMargins(self, *__args):

setValidator(self, QValidator):