如何在类似热键的函数中使用逗号(，)？

var a = 1, b = 2, c = 3;

def my_function(a, b, c):
    # 函数体

@Test
public void testAddition() {
    int result = add(2, 3);
    assertEquals(5, result);
}

SELECT name, age, city FROM users;

listen 127.0.0.1:80, [::1]:80;

services:
  web:
    build: .
    ports:
      - "80:80"
  database:
    image: mysql

import socket

addresses = [("127.0.0.1", 8000), ("localhost", 8080)]
for address in addresses:
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect(address)

allow tcp from any to any port 80, 443

ffmpeg -i input1.mp4,input2.mp4 -c copy output.mp4

X = [[1, 2], [3, 4], [5, 6]]
y = [0, 1, 0]

String[] deviceIds = {"device1", "device2", "device3"};
IoTApplication.registerDevices(deviceIds);

<manifest>
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
</manifest>

cp file1.txt, file2.txt target_directory/

const transactionHashes = ["0x123abc", "0x456def", "0x789ghi"];

string[] objectIds = { "object1", "object2", "object3" };
VirtualRealityApp.selectObjects(objectIds);