使用通配符键从数组中提取键和值

const obj = { name: 'John', age: 30, city: 'New York' };

for (const [key, value] of Object.entries(obj)) {
  console.log(`Key: ${key}, Value: ${value}`);
}

Key: name, Value: John
Key: age, Value: 30
Key: city, Value: New York

obj = {'name': 'John', 'age': 30, 'city': 'New York'}

for key, value in obj.items():
    print(f"Key: {key}, Value: {value}")

Key: name, Value: John
Key: age, Value: 30
Key: city, Value: New York

Map<String, Object> map = new HashMap<>();
map.put("name", "John");
map.put("age", 30);
map.put("city", "New York");

for (Map.Entry<String, Object> entry : map.entrySet()) {
    String key = entry.getKey();
    Object value = entry.getValue();
    System.out.println("Key: " + key + ", Value: " + value);
}

Key: name, Value: John
Key: age, Value: 30
Key: city, Value: New York