现在是2016年2月5日东部标准时区(美国)晚上8:04。当我运行这个命令时Time.now.today?#=>false它返回错误。为什么，我该如何纠正？谢谢。详细信息:rails4.0.0ruby2.2.1p85MacOSXElCapitan 最佳答案 经常让人们感到困惑的一件事是Time.now和Time.current是完全不同的对象。Time.now按原样返回Ruby库的Time类。它返回系统时间。Time.current返回由RailsActiveSupport库修改的时间。它返回由Railstime_zone设置修改的

Withtheadventofthedigitalera,wehavewitnessedtheuseofdataandthere-creationofdatavalue,whichhasmadedatatheall-importantitemforthenewera.Atthesametime,theneedforsecuringdatahasintensified.Withnewdataandtechnologydevelopmentandutilizationscenarios,unknownsecurityrisksarenowpresent,andwearenowfacinganewc

Withtheadventofthedigitalera,wehavewitnessedtheuseofdataandthere-creationofdatavalue,whichhasmadedatatheall-importantitemforthenewera.Atthesametime,theneedforsecuringdatahasintensified.Withnewdataandtechnologydevelopmentandutilizationscenarios,unknownsecurityrisksarenowpresent,andwearenowfacinganewc