c++ Qt python pyqt 控件样式美化。

        您可以随意操控渐变颜色，渐变方向，注意需要重写窗口移动事件

        #widget{background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 rgba(255,182,193,.7),stop:.5 rgb(176,224,230));}
        

class Main(QMainWindow):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.resize(1000, 600)
        widget = QWidget()
        self.widget_layout = QVBoxLayout(widget)
        widget.setObjectName("widget")
        self.setCentralWidget(widget)
        self.setAttribute(Qt.WA_TranslucentBackground)  # 窗体背景透明
        self.setWindowFlags(Qt.FramelessWindowHint)  # 无边框
        self.button()
        self.setStyleSheet('''
        #widget{background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 rgba(255,182,193,.7),stop:.5 rgb(176,224,230));}
        ''') 

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_flag = True
            self.m_Position = event.globalPos() - self.pos()  # 获取⿏标相对窗⼝的位置
            event.accept()
            self.setCursor(QCursor(Qt.OpenHandCursor))  # 更改⿏标图标

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_flag:
            self.move(QMouseEvent.globalPos() - self.m_Position)  # 更改窗⼝位置
            QMouseEvent.accept()

    def mouseReleaseEvent(self, QMouseEvent):
        self.m_flag = False
        self.setCursor(QCursor(Qt.ArrowCursor))

注意：如果想让按钮完全圆形，需要将圆角属性设置按钮宽高的50%,讲人话就是按钮宽高一半

button.setFixedSize(100, 100) 按钮宽度100 ，高度100

则圆角属性：border-radius:50px; 也可单独设置某个角

import sys

from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QCursor, QIcon, QPixmap
from PyQt5.QtWidgets import QApplication, QVBoxLayout, QHBoxLayout, QWidget, QMainWindow, QPushButton, QLabel


class Main(QMainWindow):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.resize(1000, 600)
        widget = QWidget()
        self.widget_layout = QVBoxLayout(widget)
        widget.setObjectName("widget")
        self.setCentralWidget(widget)
        self.setAttribute(Qt.WA_TranslucentBackground)  # 窗体背景透明
        self.setWindowFlags(Qt.FramelessWindowHint)  # 无边框
        self.button()
        self.setStyleSheet('''
        #widget{background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 rgba(255,182,193,.7),stop:.5 rgb(176,224,230));}
        

        ''')

    def button(self):
        """按钮样式"""
        button_layout = QHBoxLayout()
        self.widget_layout.addLayout(button_layout)
        button = QPushButton("普通按钮")
        button1 = QPushButton("样式按钮")
        button1.setStyleSheet('''
        QPushButton{border-radius:2px;background:rgb(211,211,211);font-family:'微软雅黑';color:rgb(255,182,193);font-size:18px;}
          
        QPushButton:hover{border-radius:50px;background:rgb(100,149,237);font-family:'微软雅黑';color:rgb(255,255,255);font-size:16px;}
        
           ''')
        button2 = QPushButton("图标按钮")
        button2.setIconSize(QSize(50, 50))
        button2.setIcon(QIcon("stop.png"))
        button3 = Buttons(text="图标按钮", img="stop.png", direction="top")
        button4 = Buttons(text="图标按钮", img="stop.png", direction="bottom")
        button5 = Buttons(text="图标按钮", img="stop.png", direction="right")
        button6 = QPushButton("右下圆角")
        button6.setStyleSheet("color:#ffffff;background:rgb(0,0,0);border-top-right-radius:20px;border-bottom-right-radius:20px;")
        button.setFixedSize(100, 100)
        button1.setFixedSize(100, 100)
        button2.setFixedSize(150, 100)
        button3.setFixedSize(150, 100)
        button4.setFixedSize(150, 100)
        button5.setFixedSize(150, 100)
        button6.setFixedSize(100, 100)
        button_layout.addWidget(button)
        button_layout.addWidget(button1)
        button_layout.addWidget(button6)
        button_layout.addWidget(button2)
        button_layout.addWidget(button3)
        button_layout.addWidget(button4)
        button_layout.addWidget(button5)

        button_layout.addStretch(3)

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_flag = True
            self.m_Position = event.globalPos() - self.pos()  # 获取⿏标相对窗⼝的位置
            event.accept()
            self.setCursor(QCursor(Qt.OpenHandCursor))  # 更改⿏标图标

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_flag:
            self.move(QMouseEvent.globalPos() - self.m_Position)  # 更改窗⼝位置
            QMouseEvent.accept()

    def mouseReleaseEvent(self, QMouseEvent):
        self.m_flag = False
        self.setCursor(QCursor(Qt.ArrowCursor))


class Buttons(QPushButton):
    def __init__(self, parent=None, text="", img="", direction=None):
        super().__init__(parent=parent)
        if direction is None:
            return
        self.label_text = QLabel(text)
        self.label_text.setAlignment(Qt.AlignCenter)  # 字体居中
        self.label_img = QLabel()
        self.label_img.setFixedSize(50, 50)
        self.label_img.setScaledContents(True)  # 图片自适应
        self.label_img.setPixmap(QPixmap(img))
        self.label_text.setAttribute(Qt.WA_TransparentForMouseEvents, True)  # 设置控件不响应鼠标事件-穿透效果
        self.label_img.setAttribute(Qt.WA_TransparentForMouseEvents, True)  # 设置控件不响应鼠标事件-穿透效果
        if direction == "right":
            self.right()
        elif direction == "top" or direction == "bottom":
            self.top_bottom(direction)

    def right(self):
        layout = QHBoxLayout(self)
        layout.addWidget(self.label_text, 0, Qt.AlignCenter)
        layout.addWidget(self.label_img, 0, Qt.AlignCenter)

    def top_bottom(self, d):
        if d == "top":
            layout = QVBoxLayout(self)
            layout.addWidget(self.label_img, 0, Qt.AlignCenter)
            layout.addWidget(self.label_text, 0, Qt.AlignCenter)
        else:
            layout = QVBoxLayout(self)
            layout.addWidget(self.label_text, 0, Qt.AlignCenter)
            layout.addWidget(self.label_img, 0, Qt.AlignCenter)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = Main()
    win.show()
    sys.exit(app.exec_())

标签添加下划线，添加图片。添加动图，跳转网页

 def label(self):
        """标签样式"""
        label_layout = QHBoxLayout(self.widget)
        url_label = QLabel()
        url_label.setOpenExternalLinks(True)  # 允许跳转网页
        url_label.setText(
            '百度：'
            ''
            'www.baidu.com'
            '')
        label = QLabel("普通标签")
        label1 = QLabel()
        label1.setScaledContents(True)  # 图片自动适应
        label1.setPixmap(QPixmap("Fail.png"))

        label2 = QLabel()
        label2.setScaledContents(True)  # 图片自动适应
        wait_gif = QMovie('Wait.gif')  # 创建动图对象
        label2.setMovie(wait_gif)  # label设置动图
        wait_gif.start()  # 开始播放动图

        label3 = QLabel("样式标签")
        label3.setStyleSheet('''
                QLabel{text-decoration: underline;background-color: transparent;color: #1E90FF;font-family: 'SimHei', serif;font-size: 18px;}
                ''')
        label4 = QLabel("鼠标指向标签时")
        label4.setStyleSheet('''
        QLabel:hover{background-color: #9370DB	;color: #ffffff;font-family: 'SimHei', serif;font-size: 18px;}
        
        ''')

        combox = QComboBox()
        combox.addItems(["张三","李四","王五","小红","小明"])
        combox.setStyleSheet('''
            QComboBox{combobox-popup:0;height:25px;width:80px;border-style:none;font-size:12px;font-family:微软雅黑;color:rgb(0,0,0);border-radius:0px;}
            
            QComboBox:down-arrow{border: none;background: transparent;image: url("x.png");}
             
            QComboBox:drop-down{border: none;subcontrol-position: right center;subcontrol-origin: padding;}
                  ''')

        整数，小数，自定义中文，前后穿插字符

import sys

from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QCursor, QIcon, QPixmap, QMovie
from PyQt5.QtWidgets import QApplication, QSpinBox, QVBoxLayout, QComboBox, QHBoxLayout, QWidget, QMainWindow, 
    QPushButton, QLabel, QDoubleSpinBox


class Main(QMainWindow):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.resize(1000, 600)
        self.widget = QWidget()
        self.widget.setObjectName("widget")
        self.setCentralWidget(self.widget)
        self.setAttribute(Qt.WA_TranslucentBackground)  # 窗体背景透明
        self.setWindowFlags(Qt.FramelessWindowHint)  # 无边框

        layout = QHBoxLayout(self.widget)

        spinbox = QSpinBox()
        myspinbox = StrSpinBox()
        myspinbox.setRange(0,2)
        myspinbox.setFixedSize(100, 30)
        spinbox.setFixedSize(60, 30)
        douspinbox = QDoubleSpinBox()
        spinbox1 = QSpinBox()
        spinbox2 = QSpinBox()

        spinbox.setObjectName("SpinBox")
        myspinbox.setObjectName("SpinBox")
        douspinbox.setObjectName("SpinBox")
        spinbox1.setObjectName("SpinBox")
        spinbox2.setObjectName("SpinBox")
        spinbox1.setPrefix("$   ")
        spinbox2.setSuffix("元")

        layout.addWidget(spinbox)
        layout.addWidget(myspinbox)
        layout.addWidget(douspinbox)
        layout.addWidget(spinbox1)
        layout.addWidget(spinbox2)
        layout.addStretch(3)
        self.setStyleSheet('''
        #widget{background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 rgba(255,182,193,.7),stop:.5 rgb(176,224,230));}
        
        
        
        
        #SpinBox {padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 15px;border: 1px solid rgb(0,0,0);border-radius: 3px;color: rgb(200,200,200);background-color: rgb(255,255,255);selection-color: rgb(235,235,235);selection-background-color: rgb(83,121,180);font-family: "Microsoft Yahei";font-size: 12px;}
        
        #SpinBox:hover {background-color: rgb(105,105,105);}
        
        #SpinBox::up-button { 
        subcontrol-origin: border; 
        subcontrol-position: top right; 
        border: none; width: 12px;margin-top: 2px;margin-right: 3px;margin-bottom: 0px;}
        #SpinBox::up-button:hover {border: none;}
        #SpinBox::up-arrow { 
        image: url(s.png);}
        #SpinBox::down-button { 
        subcontrol-origin: border;subcontrol-position: bottom right; border: none;width: 12px;margin-top: 0px;margin-right: 3px;margin-bottom: 2px;}
        #SpinBox::down-button:hover { border: none;}
        #SpinBox::down-arrow { 
        image: url(x.png);}

        ''')

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_flag = True
            self.m_Position = event.globalPos() - self.pos()  # 获取⿏标相对窗⼝的位置
            event.accept()
            self.setCursor(QCursor(Qt.OpenHandCursor))  # 更改⿏标图标

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_flag:
            self.move(QMouseEvent.globalPos() - self.m_Position)  # 更改窗⼝位置
            QMouseEvent.accept()

    def mouseReleaseEvent(self, QMouseEvent):
        self.m_flag = False
        self.setCursor(QCursor(Qt.ArrowCursor))


class StrSpinBox(QSpinBox):
    def __init__(self, father=None):
        super().__init__(father)

    def textFromValue(self, v: int):  # 自定义格式

        shape = ["张三", "小红", "小明"]
        return shape[v]


if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = Main()
    win.show()
    sys.exit(app.exec_())

边框线设置

import sys

from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QCursor, QIcon, QPixmap, QMovie, QTextCursor
from PyQt5.QtWidgets import QApplication, QSpinBox, QVBoxLayout, QComboBox, QHBoxLayout, QWidget, QMainWindow, 
    QPushButton, QLabel, QDoubleSpinBox, QTextEdit


class Main(QMainWindow):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.resize(1000, 600)
        self.widget = QWidget()
        self.widget.setObjectName("widget")
        self.setCentralWidget(self.widget)
        self.setAttribute(Qt.WA_TranslucentBackground)  # 窗体背景透明
        self.setWindowFlags(Qt.FramelessWindowHint)  # 无边框

        layout = QVBoxLayout(self.widget)

        deit = QTextEdit()
        deit.setText("跟我学QT")
        deit.setAlignment(Qt.AlignCenter)  # 文本居中， 也可以上下左右
        deit.setReadOnly(True)  # 文本内容只读 不可编辑
        deit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)  # 隐藏水平滚动条
        deit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)  # 隐藏垂直滚动条
        deit.append("添加内容")  # 添加内容
        deit.moveCursor(QTextCursor.End)  # 光标末尾
        deit.moveCursor(QTextCursor.StartOfLine)  # 光标换行
        deit.setFixedSize(500, 200)


        deit.setStyleSheet('''
        QTextEdit{font-family: 'SimHei', serif;font-size: 14px;background-color:#ffffff; color:#000000}
        QTextEdit{
        border-width:2px 5px 10px 15px;
        border-style:solid;
        border-color:#FFC0CB #DC143C #8B008B #000000;}''')


        layout.addWidget(deit)
        self.setStyleSheet('''
        #widget{background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1,stop:0 rgba(255,182,193,.7),stop:.5 rgb(176,224,230));}
                ''')

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_flag = True
            self.m_Position = event.globalPos() - self.pos()  # 获取⿏标相对窗⼝的位置
            event.accept()
            self.setCursor(QCursor(Qt.OpenHandCursor))  # 更改⿏标图标

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_flag:
            self.move(QMouseEvent.globalPos() - self.m_Position)  # 更改窗⼝位置
            QMouseEvent.accept()

    def mouseReleaseEvent(self, QMouseEvent):
        self.m_flag = False
        self.setCursor(QCursor(Qt.ArrowCursor))




if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = Main()
    win.show()
    sys.exit(app.exec_())

        Scroll.setStyleSheet('''
        QScrollArea{border:none;background-color:rgb(235,235,235);}
        QScrollArea QScrollBar:vertical{width:12px;background:transparent;margin:0px,1px,0px,1px;padding-top:0px;padding-bottom:0px;border-radius:6px;}
        QScrollArea QScrollBar::handle:vertical{background:#DCDCDC;border-radius:6px;}
        QScrollArea QScrollBar::handle:vertical:hover{background:#808080;border-radius:6px;}
        QScrollArea QScrollBar::add-page:vertical,QScrollBar::sub-page:vertical{background:transparent;border-radius:6px;}
        QScrollArea QScrollBar::add-line:vertical,QScrollBar::sub-line:vertical{height:0px;width:0px;}
        ''')

frame = QFrame()  # 分割线
frame.setMaximumSize(2, 35)
frame.setFrameShape(QFrame.VLine)  # 设置垂直平方向
frame.setStyleSheet(" QFrame {background: #A9A9A9;color: #A9A9A9;} ")