直接访问JSON对象属性并记录

{
  "name": "John",
  "age": 30,
  "email": "john@example.com"
}

const obj = {
  name: "John",
  age: 30,
  email: "john@example.com"
};

console.log(obj.name); // 输出: John
console.log(obj.age); // 输出: 30
console.log(obj.email); // 输出: john@example.com

const obj = {
  name: "John",
  age: 30,
  email: "john@example.com"
};

console.log(obj["name"]); // 输出: John
console.log(obj["age"]); // 输出: 30
console.log(obj["email"]); // 输出: john@example.com

const winston = require('winston');

// 创建一个日志记录器
const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  transports: [
    new winston.transports.Console(),
    new winston.transports.File({ filename: 'access.log' })
  ]
});

const obj = {
  name: "John",
  age: 30,
  email: "john@example.com"
};

// 访问JSON对象的属性并记录
const name = obj.name;
logger.info(`访问属性 name，值为 ${name}`);

const age = obj.age;
logger.info(`访问属性 age，值为 ${age}`);

const email = obj.email;
logger.info(`访问属性 email，值为 ${email}`);