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我想做一个简单的计算器,将需要2个数字,用户输入并将它们相乘。但是,当我将ans_string设置为float时,代码无法正常工作,但是如果将其设置为str,它将起作用。PyQt不会显示我的答案作为一个浮点数
我希望能够输入带小数点的数字,并且只在答案上显示2个小数位。
如果我运行代码ans_str我得到以下错误“AtrributeError:‘QLabel’对象有没有属性‘SETT’
from PyQt5.QtWidgets import QMainWindow, QWidget, QApplication
from ui_multform import Ui_CalcWindow
class MainWindow(QMainWindow, Ui_CalcWindow):
def __init__(self, parent = None):
super(MainWindow, self).__init__(parent)
self.ui = Ui_CalcWindow()
self.ui.setupUi(self)
self.ui.pushButton.clicked.connect(self.mult)
def mult(self, value):
in_num1 = float(self.ui.lineEdit.text())
in_num2 = float(self.ui.lineEdit_2.text())
ans = in_num1 * in_num2
ans_string = float(ans) # << here ans_string is created
print (ans_string) # << Where u need to put it
self.ui.label_2.setText(ans_string)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv) # A new instance of QApplication
calculator = MainWindow() # We set the form to be our MainWindow (design)
calculator.show() # Show the form
sys.exit(app.exec_())