根据时间间隔查找下一个日期(月/季度)

import datetime

def find_next_date(current_date, interval):
    if interval == 'month':
        next_date = current_date + datetime.timedelta(days=31)
    elif interval == 'quarter':
        next_date = current_date + datetime.timedelta(days=91)
    else:
        return None
    
    while next_date <= current_date:
        if interval == 'month':
            next_date += datetime.timedelta(days=31)
        elif interval == 'quarter':
            next_date += datetime.timedelta(days=91)
    
    return next_date

# 示例用法
current_date = datetime.date.today()
interval = 'month'
next_date = find_next_date(current_date, interval)
print(next_date)