Python: 如何輸出json檔? json.dump() ; json.dumps() 差異為何?

# -*- coding: utf-8 -*-
"""
Created on Mon Nov 20 14:30:55 2023

@author: SavingKing
"""

sample_dict = {
    "name": "Alice",
    "age": 30,
    "city": "Wonderland"
}

import json

# 直接将字典序列化到文件
with open("output_with_dump.json", "w") as file:
    json.dump(sample_dict, file, indent=4)

# 先将字典序列化为字符串，然后写入文件
json_str = json.dumps(sample_dict, indent=4)
with open("output_with_dumps.json", "w") as file:
    file.write(json_str)