将Python3 PyQT5浮点变量转换为LineEdit

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel, QLineEdit

class MyWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Float to LineEdit")
        self.setGeometry(100, 100, 300, 200)  # 设置窗口大小和位置

        self.label = QLabel("Float Variable:", self)
        self.label.setGeometry(20, 20, 100, 30)

        self.line_edit = QLineEdit(self)
        self.line_edit.setGeometry(120, 20, 150, 30)

def float_to_line_edit(float_var):
    return str(float_var)

def update_line_edit(self):
    float_var = 3.14  # 浮点变量示例，可以根据实际情况进行修改
    converted_var = float_to_line_edit(float_var)
    self.line_edit.setText(converted_var)

self.line_edit.textChanged.connect(self.update_line_edit)

app = QApplication(sys.argv)
window = MyWindow()
window.show()
sys.exit(app.exec_())