exit、_exit()、atexit以及return和main函数隐式返回的区别

cs

>;1、在main中，exit()和_exit()的区别，atexit()有什么用，atexit()函数的参数是什么，如何登记和调用的？

there are detail description on them in <<Advanced Programming in the UNIX Environment>;>; Pg.162~164

>;2、在main中，return,return（int）和main函数隐式返回的区别？

we can also get useful info of them from abvoe mentioned book, in addition,
in <<The C programming Language >;>;(2ed.)  it is said that "whithin main,
return expr is equivalent to exit(expr)" Pg.164.

cs

[quote]原帖由 "蓝色键盘"]cs兄，英语不错，要是用英文来讨论也不错。呵呵[/quote 发表：


where  where

but sometime when you can't input chinese, do you have any other
choice than use english

from technique view,  english is more understandable than chinese
in expressing.