使用.move将控件水平移动到特定的位置, 被称为绝对布局

AbsoluteLayout.py

"""
绝对布局
"""

import sys, math
from PyQt5.QtWidgets import *

class AbsoluteLayout(QWidget):
    def __init__(self):
        super(AbsoluteLayout, self).__init__()
        self.setWindowTitle("绝对布局")

        self.label1 = QLabel('欢迎', self)
        self.label1.move(15, 20)

        self.label2 = QLabel('学习', self)
        self.label2.move(35, 40)

        self.label3 = QLabel('PyQt5', self)
        self.label3.move(55, 80)


if __name__ == "__main__":
    app = QApplication(sys.argv)

    main = AbsoluteLayout()
    main.show()

    sys.exit(app.exec_())