我真的希望有人可以帮助我解决这个问题.我正在尝试开始使用 pyqt5
,并且几乎从我正在学习的课程中复制了这段代码.代码似乎执行没有任何问题,但我应该看到的窗口根本没有出现,我做错了什么?顺便说一下,我正在研究 ubuntu 18
I really hope someone can help me out on this one.
Im trying to get started with using pyqt5
, and have pretty much copied this code from a course that i am taking. the code seems to execute without any problems, but the window that i should be seeing is simply not appearing, what am I doing wrong?
Im working on ubuntu 18
by the way
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class Page(QWidget):
def __init__(self, parent=None):
super(Page, self).__init__(parent)
my_label = QLabel("This is my labet")
layout = QVBoxLayout()
layout.addWidget(my_label)
mainLayout = QGridLayout()
mainLayout.addLayout(layout, 0, 1)
self.setLayout(mainLayout)
self.setWindowTitle("my first Qt app")
if __name__ == "__mongo__":
import sys
print("LOEREE")
app = QApplication(sys.argv)
window = Page()
window.show()
在你的例子中有一些拼写错误,最后没有一行 sys.exit (app.exec _ ())
它启动了应用程序的主循环.从这里开始处理事件.
In your example there were some typos and at the end there was no line sys.exit (app.exec _ ())
which starts the main loop of the application. From here begins the processing of events.
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class Page(QWidget):
def __init__(self, parent=None): # __init__
super(Page, self).__init__(parent) # __init__
my_label = QLabel("This is my labet")
layout = QVBoxLayout()
layout.addWidget(my_label)
mainLayout = QGridLayout()
mainLayout.addLayout(layout, 0, 1)
self.setLayout(mainLayout)
self.setWindowTitle("my first Qt app")
if __name__ == '__main__': #
import sys
print("LOEREE")
app = QApplication(sys.argv)
window = Page()
window.show()
sys.exit(app.exec_()) # !!!
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