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DrawMultiline.py
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DrawMultiline.py
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"""
QPainter
painter=QPainter()
painter.begin()
painter.drawText(...)
painter.end()
固定格式
"""
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import sys,math
class drawPointDemo (QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("在窗口绘制直线")
self.resize(300, 100)
#只要窗口部件需要被重绘就被调用。paintEvent
def paintEvent(self,event):
#新建一个
painter=QPainter(self)
painter.begin(self)
#设置笔刷样式
pen=QPen(Qt.red,3,Qt.SolidLine)
painter.setPen(pen)
#设置线的坐标
painter.drawLine(20,40,250,40)
pen.setStyle(Qt.DashLine)
painter.setPen(pen)
painter.drawLine(20,80 , 250, 80)
pen.setStyle(Qt.DashDotDotLine)
painter.setPen(pen)
painter.drawLine(20, 120, 250, 120)
painter.end()
if __name__ == '__main__':
app = QApplication(sys.argv)
main = drawPointDemo()
main.show()
sys.exit(app.exec_())