从函数参数推断对象属性

interface User {
  name: string;
  age: number;
}

function printUserInfo(user: User) {
  console.log(`Name: ${user.name}, Age: ${user.age}`);
}

const user1 = { name: "Alice", age: 30 };
printUserInfo(user1); // 输出: Name: Alice, Age: 30

class User:
    def __init__(self, name: str, age: int):
        self.name = name
        self.age = age

def print_user_info(user):
    print(f"Name: {user.name}, Age: {user.age}")

user1 = User("Alice", 30)
print_user_info(user1)  # 输出: Name: Alice, Age: 30

function printUserInfo(user: User) {
  if (typeof user.name !== 'string' || typeof user.age !== 'number') {
    throw new Error("Invalid user object");
  }
  console.log(`Name: ${user.name}, Age: ${user.age}`);
}

def print_user_info(user):
    if not isinstance(user.name, str) or not isinstance(user.age, int):
        raise ValueError("Invalid user object")
    print(f"Name: {user.name}, Age: {user.age}")

function printUserInfo(user: Partial<User>) {
  const name = user.name ?? "Unknown";
  const age = user.age ?? 0;
  console.log(`Name: ${name}, Age: ${age}`);
}

def print_user_info(user):
    name = user.get('name', "Unknown")
    age = user.get('age', 0)
    print(f"Name: {name}, Age: {age}")