NEW: 添加多线程

06-PyQt/16-PyQt引入多线层.py

@@ -0,0 +1,49 @@
+
+# 我们一般将界面的显示用主线程来操作，
+# 逻辑功能代码或者耗时的代码都用另外线程进行处理
+
+import sys
+import time
+
+from PyQt5.QtWidgets import *
+from PyQt5 import uic
+from PyQt5.Qt import QThread
+class MyWin(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.init_ui()
+
+    def init_ui(self):
+        self.ui = uic.loadUi('./thread-1.ui')
+
+        lineedit = self.ui.lineEdit
+        btn1 = self.ui.pushButton
+        btn2 = self.ui.pushButton_2
+
+        btn1.clicked.connect(self.click_1)
+        btn2.clicked.connect(self.click_2)
+
+    def click_1(self):
+        for i in range(10):
+            print('是UI线程中执行......%d' % (i + 1))
+            time.sleep(1)
+
+    def click_2(self):
+        self.my_thread = MyThread() # 线程创建
+        self.my_thread.start() # 开始线程
+
+
+class MyThread(QThread):
+    def __init__(self):
+        super().__init__()
+
+    def run(self):
+        for i in range(10):
+            print('是MyThread中执行...... %d' % (i + 1))
+            time.sleep(1)
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    myshow = MyWin()
+    myshow.ui.show()
+    app.exec()

06-PyQt/17-给子线程发现号.py

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+
+import sys
+from PyQt5.QtWidgets import QApplication, QWidget
+from PyQt5.Qt import QThread
+from PyQt5 import uic
+import time
+from PyQt5.QtCore import pyqtSignal
+import json
+
+class LoginThread(QThread):
+    start_login_signal = pyqtSignal(str)
+    def __init__(self):
+       super().__init__()
+
+    def login_by_requests(self, user_password_json):
+        user_password_json = json.loads(user_password_json)
+        print(user_password_json.get('user_name'))
+        print(user_password_json.get('password'))
+
+    def run(self):
+        # 通过while True的方式让子线程一直在运行，而不是结束
+        # 通过这种方式，我们让子线程一直活着，从而有能力接受来自主线程(UI线程)的任务
+        while True:
+            print('子线程正在执行......')
+            time.sleep(1)
+
+class MyWindow(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.init_ui()
+
+    def init_ui(self):
+        self.ui = uic.loadUi('./login.ui')
+
+        self.user_name_Qwidget = self.ui.lineEdit
+        self.password_Qwidget = self.ui.lineEdit_2
+        self.login_btn = self.ui.pushButton
+        self.forget_password_btn = self.ui.pushButton_2
+        self.textBrowser = self.ui.textBrowser
+
+        self.login_btn.clicked.connect(self.login)
+        self.login_thread = LoginThread()
+        # 将要创建的线程与
+        self.login_thread.start_login_signal.connect(self.login_thread.login_by_requests)
+        # 让子线程开始工作
+        self.login_thread.start()
+
+    def login(self):
+        # 登录按钮的槽函数
+        user_name = self.user_name_Qwidget.text()
+        password = self.password_Qwidget.text()
+        self.login_thread.start_login_signal.emit(json.dumps({'user_name' : user_name, 'password' : password}))
+
+
+
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    w = MyWindow()
+    w.ui.show()
+    app.exec()

06-PyQt/thread-1.ui

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+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Form</class>
+ <widget class="QWidget" name="Form">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>273</width>
+    <height>102</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <widget class="QWidget" name="">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>20</y>
+     <width>230</width>
+     <height>65</height>
+    </rect>
+   </property>
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QLineEdit" name="lineEdit"/>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QPushButton" name="pushButton">
+        <property name="text">
+         <string>按钮1-卡</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="pushButton_2">
+        <property name="text">
+         <string>按钮2-不卡</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>