对输入日期进行格式化处理，返回格式为 "%Y-%m-%d" 格式字符串
    支持格式包括:
    1. str: "%Y%m%d" "%Y%m%d%H%M%S", "%Y%m%d %H:%M:%S",
            "%Y-%m-%d", "%Y-%m-%d %H:%M:%S", "%Y-%m-%d %H%M%S"
    2. datetime.datetime
    3. pd.Timestamp
    4. int -> 自动在右边加 0 然后转换，譬如 '20190302093' --> "2019-03-02"

    :param cursor_date: str/datetime.datetime/int 日期或时间
    :return: str 返回字符串格式日期

def QA_util_format_date2str(cursor_date):
    """
    对输入日期进行格式化处理，返回格式为 "%Y-%m-%d" 格式字符串
    支持格式包括:
    1. str: "%Y%m%d" "%Y%m%d%H%M%S", "%Y%m%d %H:%M:%S",
            "%Y-%m-%d", "%Y-%m-%d %H:%M:%S", "%Y-%m-%d %H%M%S"
    2. datetime.datetime
    3. pd.Timestamp
    4. int -> 自动在右边加 0 然后转换，譬如 '20190302093' --> "2019-03-02"

    :param cursor_date: str/datetime.datetime/int 日期或时间
    :return: str 返回字符串格式日期
    """
    if isinstance(cursor_date, datetime.datetime):
        cursor_date = str(cursor_date)[:10]
    elif isinstance(cursor_date, str):
        try:
            cursor_date = str(pd.Timestamp(cursor_date))[:10]
        except:
            raise ValueError('请输入正确的日期格式, 建议 "%Y-%m-%d"')
    elif isinstance(cursor_date, int):
        cursor_date = str(pd.Timestamp("{:<014d}".format(cursor_date)))[:10]
    else:
        raise ValueError('请输入正确的日期格式，建议 "%Y-%m-%d"')
    return cursor_date