import pandas as pdimport calendarimport datetime # 生成日期范围date = pd.date_range("2020-01-01","2020-12-31",freq="D")# 将日期转化为字符串dt_str = [i.strftime("%Y% Read More
''' 问题：1、假设DataFrame中有一列名为type,其字段中内容为a,b,c 等用,隔开的值，如： type a,b,c a,f,x b,c,e ...统计type中每个类型出现的次数 并绘图''' import pandas as pdimport numpy as npfrom mat Read More
今天：today = datetime.date.today() 昨天：yesterday = today - datetime.timedelta(days=1) 上个月：last_month = today.month - 1 if today.month - 1 else 12 当前时间戳：t Read More