头发丝儿

摘要： import datetime from dateutil.relativedelta import relativedelta today = datetime.data.today() month_end_day = (today + datetime.timedelta(days = -tod 阅读全文

摘要： strsum = ''.join('%s' %a for a in request_02) ''.join( )：把xxx转换为字符串 %s：占位符 %a：循环数组的单个元素 阅读全文

摘要： 恢复内容开始 **一维数组保留小数** `data = [round(i,3) for i in data]` 此时data是一个一维数组 **二维数组保留小数** `data = [[round(j,2) for j in data[i]] for i in range(len(data))]` 阅读全文