diff --git a/QtQuick/README.md b/QtQuick/README.md
index a123d18..253ed41 100644
--- a/QtQuick/README.md
+++ b/QtQuick/README.md
@@ -2,8 +2,30 @@
 
 - 目录
   - [Flat样式](#1Flat样式)
+  - [QML与Python交互](#2QML与Python交互)
 
 ## 1、Flat样式
 [运行 FlatStyle.py](FlatStyle.py)
 
-![FlatStyle](ScreenShot/FlatStyle.gif)
\ No newline at end of file
+![FlatStyle](ScreenShot/FlatStyle.gif)
+
+## 2、QML与Python交互
+[运行 Signals.py](Signals.py)
+
+交互的办法有很多种，由于主要界面功能都是有QML来实现，Python只是作为辅助提供部分功能。
+于是和浏览器中js与python交互方式类似，提供一个Python对象给QML访问。
+
+1. 通过 `engine.rootContext().setContextProperty('_Window', w)` 注册提供一个Python对象
+2. Python对象中被访问的方法前面使用装饰器 `@pyqtSlot`，比如： `@pyqtSlot(int)` 或者 `@pyqtSlot(str, result=str)  # 可以获取返回值` 。
+3. QML中的信号或者Python对象中的信号都可以互相绑定对方的槽函数
+```js
+Component.onCompleted: {
+    // 绑定信号槽到python中的函数
+    valueChanged.connect(_Window.onValueChanged)
+    // 绑定python中的信号到qml中的函数
+    _Window.timerSignal.connect(appendText)
+}
+```
+
+
+![Signals](ScreenShot/Signals.gif)
diff --git a/QtQuick/ScreenShot/Signals.gif b/QtQuick/ScreenShot/Signals.gif
new file mode 100644
index 0000000..23ee874
Binary files /dev/null and b/QtQuick/ScreenShot/Signals.gif differ
diff --git a/QtQuick/Signals.py b/QtQuick/Signals.py
index 812b628..3ea5b81 100644
--- a/QtQuick/Signals.py
+++ b/QtQuick/Signals.py
@@ -10,9 +10,10 @@ Created on 2019年9月18日
 @description: 信号槽
 """
 
+from time import time
 import sys
 
-from PyQt5.QtCore import QCoreApplication, Qt, pyqtSlot
+from PyQt5.QtCore import QCoreApplication, Qt, pyqtSlot, pyqtSignal, QTimer
 from PyQt5.QtQml import QQmlApplicationEngine
 from PyQt5.QtWidgets import QApplication, QMessageBox, QWidget, QVBoxLayout,\
     QPushButton, QTextBrowser
@@ -37,7 +38,9 @@ ApplicationWindow {
     
     Component.onCompleted: {
         // 绑定信号槽到python中的函数
-        valueChanged.connect(_Window.onValueChanged);
+        valueChanged.connect(_Window.onValueChanged)
+        // 绑定python中的信号到qml中的函数
+        _Window.timerSignal.connect(appendText)
     }
     
     function appendText(text) {
@@ -82,6 +85,9 @@ ApplicationWindow {
 
 class Window(QWidget):
 
+    # 定义一个时间信号
+    timerSignal = pyqtSignal(str)
+
     def __init__(self, *args, **kwargs):
         super(Window, self).__init__(*args, **kwargs)
         layout = QVBoxLayout(self)
@@ -89,6 +95,12 @@ class Window(QWidget):
                                      self, clicked=self.callQmlFunc))
         self.resultView = QTextBrowser(self)
         layout.addWidget(self.resultView)
+        self._timer = QTimer(self, timeout=self.onTimeout)
+        self._timer.start(2000)
+
+    def onTimeout(self):
+        # 定时器发送信号通知qml
+        self.timerSignal.emit('定时器发来:' + str(time()))
 
     def callQmlFunc(self):
         # 主动调用qml中的appendText函数
diff --git a/README.md b/README.md
index 6ea6cf9..1a1e372 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
 
 - [QtQuick](QtQuick)
   - [Flat样式](QtQuick/FlatStyle.py)
+  - [QML与Python交互](QtQuick/Signals.py)
 
 - [QChart](QChart)
   - [折线图](QChart/LineChart.py)