Open HearyShen opened 5 years ago
https://heary.cn/posts/%E6%B7%B1%E5%85%A5%E7%90%86%E8%A7%A3C%E2%80%94%E2%80%94-define%E4%B8%8Etypedef/
https://heary.cn/posts/%E6%B7%B1%E5%85%A5%E7%90%86%E8%A7%A3C%E2%80%94%E2%80%94-define%E4%B8%8Etypedef/
define名为宏定义，工作在预处理阶段，实际是对字符串的宏替换；typedef工作在编译阶段，是对自定义数据类型的自定义别名定义。