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Question

我使用PyQt设计器创建了这个.ui文件，并通过第二个脚本(它也有一些数据处理(调用它。我如何制作QPushButton，即Confirmed、Active、Recovered和Deaths(它旁边的数字只是一个占位符，我想将它们更新为从主脚本处理的数据(。py无法理解。

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>COVID19_Updater</class>
<widget class="QMainWindow" name="COVID19_Updater">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>917</width>
<height>615</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgb(5, 25, 55);</string>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QFrame" name="frame">
<property name="maximumSize">
<size>
<width>16777215</width>
<height>16777215</height>
</size>
</property>
<property name="styleSheet">
<string notr="true">QFrame{


background-color: rgb(5, 25, 55);
border-radius: 10px
}</string>
</property>
<property name="frameShape">
<enum>QFrame::StyledPanel</enum>
</property>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
<widget class="QLabel" name="Title">
<property name="geometry">
<rect>
<x>-10</x>
<y>20</y>
<width>921</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Segoe UI</family>
<pointsize>25</pointsize>
</font>
</property>
<property name="styleSheet">
<string notr="true">color: rgb(3, 122, 245);
lable.adjustSize();</string>
</property>
<property name="text">
<string>&lt;strong&gt;COVID-19&lt;/strong&gt; &lt;i&gt;LIVE&lt;/i&gt;</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
<widget class="QLabel" name="Description">
<property name="geometry">
<rect>
<x>-10</x>
<y>70</y>
<width>921</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Segoe UI</family>
<pointsize>10</pointsize>
</font>
</property>
<property name="styleSheet">
<string notr="true">color: rgb(190, 191, 196);</string>
</property>
<property name="text">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Realtime COVID-19 status of all Countries including &lt;span style=&quot; font-weight:600;&quot;&gt;Indian&lt;/span&gt; States and Districts&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="textFormat">
<enum>Qt::MarkdownText</enum>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
<widget class="QPushButton" name="CheckData">
<property name="geometry">
<rect>
<x>300</x>
<y>190</y>
<width>281</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Segoe UI Emoji</family>
<pointsize>15</pointsize>
<weight>50</weight>
<bold>false</bold>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgba(0, 122, 255,50);
color: rgb(3, 122, 245);
border-radius: 30px;
</string>
</property>
<property name="text">
<string>Check Live Data</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QLabel" name="AuthorName">
<property name="geometry">
<rect>
<x>730</x>
<y>570</y>
<width>161</width>
<height>21</height>
</rect>
</property>
<property name="font">
<font>
<family>Segoe UI</family>
<pointsize>8</pointsize>
</font>
</property>
<property name="cursor">
<cursorShape>IBeamCursor</cursorShape>
</property>
<property name="styleSheet">
<string notr="true">color: rgba(190, 191, 196,95);</string>
</property>
<property name="text">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Created by: &lt;span style=&quot; font-style:italic;&quot;&gt;Sumukh Jadhav&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
</property>
<property name="textFormat">
<enum>Qt::MarkdownText</enum>
</property>
<property name="alignment">
<set>Qt::AlignBottom|Qt::AlignRight|Qt::AlignTrailing</set>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
<property name="textInteractionFlags">
<set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
</property>
</widget>
<widget class="QPushButton" name="UpdataData">
<property name="geometry">
<rect>
<x>300</x>
<y>290</y>
<width>281</width>
<height>61</height>
</rect>
</property>
<property name="font">
<font>
<family>Segoe UI Emoji</family>
<pointsize>15</pointsize>
<weight>50</weight>
<italic>false</italic>
<bold>false</bold>
<underline>false</underline>
<strikeout>false</strikeout>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgba(0, 122, 255,50);
color: rgb(3, 122, 245);
border-radius: 30px;
</string>
</property>
<property name="text">
<string>Update Status</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QPushButton" name="Confirmed">
<property name="geometry">
<rect>
<x>20</x>
<y>460</y>
<width>201</width>
<height>81</height>
</rect>
</property>
<property name="font">
<font>
<family>Helvetica LT Std</family>
<pointsize>15</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
<underline>false</underline>
<strikeout>false</strikeout>
<kerning>true</kerning>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">
background-color: rgba(112,108,195,50);
color: rgb(112,108,195);

</string>
</property>
<property name="text">
<string>Confirmed
2,94,59,649</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QPushButton" name="Active">
<property name="geometry">
<rect>
<x>240</x>
<y>460</y>
<width>201</width>
<height>81</height>
</rect>
</property>
<property name="font">
<font>
<family>Helvetica LT Std</family>
<pointsize>15</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
<underline>false</underline>
<strikeout>false</strikeout>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">
background-color: rgba(238, 14, 63,50);
color: rgb(238, 14, 63);

</string>
</property>
<property name="text">
<string>Active
72,41,136</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QPushButton" name="Recovered">
<property name="geometry">
<rect>
<x>460</x>
<y>460</y>
<width>201</width>
<height>81</height>
</rect>
</property>
<property name="font">
<font>
<family>Helvetica LT Std</family>
<pointsize>15</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
<underline>false</underline>
<strikeout>false</strikeout>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgba(46, 155, 80,50);
color: rgb(42, 160, 79);

</string>
</property>
<property name="text">
<string>Recovered
2,12,92,324</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QPushButton" name="Deaths">
<property name="geometry">
<rect>
<x>680</x>
<y>460</y>
<width>201</width>
<height>81</height>
</rect>
</property>
<property name="font">
<font>
<family>Helvetica LT Std</family>
<pointsize>15</pointsize>
<weight>75</weight>
<italic>false</italic>
<bold>true</bold>
<underline>false</underline>
<strikeout>false</strikeout>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgba(110, 116, 128,50);
color: rgb(110, 114, 126);
</string>
</property>
<property name="text">
<string>Deaths
9,33,150</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
<widget class="QPushButton" name="UpdataData_2">
<property name="geometry">
<rect>
<x>300</x>
<y>420</y>
<width>281</width>
<height>31</height>
</rect>
</property>
<property name="font">
<font>
<family>Gravity</family>
<pointsize>13</pointsize>
<weight>75</weight>
<italic>true</italic>
<bold>true</bold>
<underline>false</underline>
<strikeout>false</strikeout>
</font>
</property>
<property name="focusPolicy">
<enum>Qt::StrongFocus</enum>
</property>
<property name="layoutDirection">
<enum>Qt::LeftToRight</enum>
</property>
<property name="styleSheet">
<string notr="true">
color: rgb(169, 206, 244);
border-radius: 30px;
</string>
</property>
<property name="text">
<string>Current World Data</string>
</property>
<property name="checkable">
<bool>false</bool>
</property>
</widget>
</widget>
</item>
</layout>
</widget>
</widget>
<resources/>
<connections/>
</ui>

主脚本

from PyQt5 import QtWidgets, uic
import sys
from bs4 import BeautifulSoup
import requests
import re
url = 'https://www.worldometers.info/coronavirus/'
page = requests.get(url)
soup = BeautifulSoup(page.content, 'html.parser')
class Ui(QtWidgets.QMainWindow):
def __init__(self):
super(Ui, self).__init__()
uic.loadUi('AutoSize.ui', self)
self.show()

app = QtWidgets.QApplication(sys.argv)
window = Ui()
app.exec_()
data = []
for x in range(0, 3):
x = soup.find_all(class_ = 'maincounter-number')[x].find('span').text
data.append(x)
Active = int((re.sub("[],]","", data[0]))) - (int((re.sub("[],]","", data[1]))) + int((re.sub("[],]","", data[2]))))
res = "{:,}".format(Active)

con = data[0]
det = data[1]
rec = data[2]
act = str(res)

Answer 1

获取信息的任务非常耗时，因此不应在主线程中执行，而应在辅助线程中执行并通过信号发送信息。OP没有明确描述之前应该更新的事件，所以在我的示例中，我将使用QTimer每T秒更新一次：

import sys
import threading
from PyQt5 import QtCore, QtWidgets, uic
from bs4 import BeautifulSoup
import requests

class Scrapper(QtCore.QObject):
dataChanged = QtCore.pyqtSignal(tuple)
def start(self):
threading.Thread(target=self._execute, daemon=True).start()
def _execute(self):
url = "https://www.worldometers.info/coronavirus/"
page = requests.get(url)
soup = BeautifulSoup(page.content, "html.parser")
data = []
for e in soup.find_all(class_="maincounter-number"):
value = int(e.find("span").text.strip().replace(",", ""))
data.append(value)
total, deaths, recovered = data
active = total - deaths - recovered
self.dataChanged.emit((total, deaths, recovered, active))

class Ui(QtWidgets.QMainWindow):
def __init__(self):
super(Ui, self).__init__()
uic.loadUi("AutoSize.ui", self)
self.s = Scrapper()
self.s.dataChanged.connect(self.update_data)
self.s.start()
@QtCore.pyqtSlot(tuple)
def update_data(self, data):
total, deaths, recovered, active = data
self.Confirmed.setText("Confirmedn{:,}".format(total))
self.Active.setText("Activen{:,}".format(active))
self.Recovered.setText("Recoveredn{:,}".format(recovered))
self.Deaths.setText("Deathsn{:,}".format(deaths))
QtCore.QTimer.singleShot(2 * 1000, self.s.start)

def main():
app = QtWidgets.QApplication(sys.argv)
window = Ui()
window.show()
sys.exit(app.exec_())

if __name__ == "__main__":
main()