NULL, 0, \0 ,nul的區(qū)別(轉(zhuǎn)載)
摘要: NULL is a macro defined in several standard headers, 0 is an integer constant, '\0' is a character constant, and nul is the name of the character constant. All of these are not interchangeable: 閱讀全文
posted @ 2009-07-01 23:10 Marcky 閱讀(334) | 評(píng)論 (0) | 編輯 收藏