Python如何在Jupyter中与Javascript交换数据

%%javascript
var data = "Hello from Javascript";
data;

from IPython.display import Javascript

js_code = """
var data = "Hello from Javascript";
data;
"""

Javascript(js_code)

from IPython.display import display
from ipywidgets import Button
from IPython.kernel.comm import Comm

# 创建一个通信通道
comm = Comm()

# 注册Python回调函数
def python_callback(msg):
    data = msg['content']['data']
    print("Received data from Javascript:", data)

comm.on_msg(python_callback)

# 创建一个按钮，点击按钮时向Javascript发送数据
button = Button(description='Send data to Javascript')

def button_click_callback(button):
    data = "Hello from Python"
    comm.send({'data': data})

button.on_click(button_click_callback)

# 在Jupyter中显示按钮
display(button)

// 注册Javascript回调函数
IPython.notebook.kernel.comm_manager.register_target('comm', function(comm, msg) {
    comm.on_msg(function(msg) {
        var data = msg.content.data;
        console.log("Received data from Python:", data);
    });
});