如何根据数组中的id搜索记录

def linear_search(records, target_id):
    for record in records:
        if record['id'] == target_id:
            return record
    return None

# 示例数据
records = [
    {'id': 1, 'name': 'Alice'},
    {'id': 2, 'name': 'Bob'},
    {'id': 3, 'name': 'Charlie'}
]

# 查找 id 为 2 的记录
result = linear_search(records, 2)
print(result)  # 输出: {'id': 2, 'name': 'Bob'}

def hash_table_search(records, target_id):
    id_to_record = {record['id']: record for record in records}
    return id_to_record.get(target_id, None)

# 示例数据
records = [
    {'id': 1, 'name': 'Alice'},
    {'id': 2, 'name': 'Bob'},
    {'id': 3, 'name': 'Charlie'}
]

# 查找 id 为 2 的记录
result = hash_table_search(records, 2)
print(result)  ### 输出: {'id': 2, 'name': 'Bob'}