追加写入json文件

#方便不占用内存，缺点最后写完后会多一个逗号，要自己手动删除

def begin_write_json():
    with open('file.json', "w", encoding="utf-8") as f:
        f.write("[")

def write_josn(items:dict):
    with open('file.json', "a", encoding="utf-8") as f:
        # f.write(json.dumps(items,ensure_ascii=False,sort_keys=True))
        f.write(json.dumps(items, ensure_ascii=False))
        f.write(",")
def last_write_josn():
    with open('file.json', "a", encoding="utf-8") as f:
        f.write("[")