问一下had better和might as well的区别?

问一下had better和might as well的区别? had better 与might as well 区别是什么? May as well和might as well的区别 as better as和as well as有什么区别? May might as well 的区别?请附例句. would better和had better的区别 had better和would better的区别 as well和as well as的区别. Well better的区别 请问一下and 和 as well as 有什么区别,好像都是和的意思. should和had better的区别? had better 和should的区别