pandas.tseries.offsets.BusinessMonthEnd.freqstr # 营业月末。频率字符串# 返回表示频率的字符串。 例子 >>> pd.DateOffset(5).freqstr '<5 * DateOffsets>' Copy to clipboard >>> pd.offsets.BusinessHour(2).freqstr '2bh' Copy to clipboard >>> pd.offsets.Nano().freqstr 'ns' Copy to clipboard >>> pd.offsets.Nano(-3).freqstr '-3ns' Copy to clipboard