从json字符串中提取变量

{
  "name": "Alice",
  "age": 30,
  "isStudent": false,
  "courses": ["Math", "Science"]
}

const jsonString = '{"name": "Alice", "age": 30, "isStudent": false, "courses": ["Math", "Science"]}';
const jsonObject = JSON.parse(jsonString);

const name = jsonObject.name;
const age = jsonObject.age;
const isStudent = jsonObject.isStudent;
const courses = jsonObject.courses;

console.log(name); // 输出: Alice
console.log(age); // 输出: 30
console.log(isStudent); // 输出: false
console.log(courses); // 输出: ["Math", "Science"]

import json

json_string = '{"name": "Alice", "age": 30, "isStudent": false, "courses": ["Math", "Science"]}'
json_object = json.loads(json_string)

name = json_object["name"]
age = json_object["age"]
is_student = json_object["isStudent"]
courses = json_object["courses"]

print(name)  # 输出: Alice
print(age)  # 输出: 30
print(is_student)  # 输出: False
print(courses)  # 输出: ['Math', 'Science']

import org.json.JSONObject;
import org.json.JSONArray;

public class Main {
    public static void main(String[] args) {
        String jsonString = "{\"name\": \"Alice\", \"age\": 30, \"isStudent\": false, \"courses\": [\"Math\", \"Science\"]}";
        JSONObject jsonObject = new JSONObject(jsonString);

        String name = jsonObject.getString("name");
        int age = jsonObject.getInt("age");
        boolean isStudent = jsonObject.getBoolean("isStudent");
        JSONArray courses = jsonObject.getJSONArray("courses");

        System.out.println(name);  // 输出: Alice
        System.out.println(age);  // 输出: 30
        System.out.println(isStudent);  // 输出: false
        System.out.println(courses);  // 输出: ["Math", "Science"]
    }
}