你好，weekOfYear和pandas.Timestamp.weekofyear规则保持一致，具体规则如下：

如果12月31日是星期一、星期二或星期三，则是下一年的第01周。如果是在星期四，那是在刚刚结束的一年的第53周；如果星期五是第52周（如果刚刚结束的一年是闰年，则是第53周）；如果是在周六或周日，则是在一年中刚刚结束的第52周。

If 31 December is on a Monday, Tuesday or Wednesday, it is in week 01 of the next year. If it is on a Thursday, it is in week 53 of the year just ending; if on a Friday it is in week 52 (or 53 if the year just ending is a leap year); if on a Saturday or Sunday, it is in week 52 of the year just ending.