如何在regex URL中引用变量？

let baseUrl = 'https://example.com';
let path = '/users';

// 使用模板字符串插入变量
let regex = new RegExp(`^${baseUrl}${path}/\\d+$`);

console.log(regex.test('https://example.com/users/123')); // 输出: true

import re

base_url = 'https://example.com'
path = '/users'

# 使用字符串格式化插入变量
regex = re.compile(rf'^{base_url}{path}/\d+$')

print(regex.match('https://example.com/users/123')) # 输出: <re.Match object; span=(0, 26), match='https://example.com/users/123'>

String baseUrl = "https://example.com";
String path = "/users";

// 使用字符串连接插入变量
Pattern regex = Pattern.compile("^" + baseUrl + path + "/\\d+$");

// 或者使用String.format
Pattern regex2 = Pattern.compile(String.format("^%s%s/\\d+$", baseUrl, path));

Matcher matcher = regex.matcher("https://example.com/users/123");
System.out.println(matcher.matches()); // 输出: true