WORD与DWORD(线程的创建与撤消)

WORD与DWORD

     在看C/C++的书或者试题时，有时会见到利用word或dword定义的变量，第一次看到的时候并不知其是什么，更不用说word或dword占几个字节了。幸好在VC安装文件夹下有相关的定义。如C:\Program Files\Microsoft VisualStudio\VC98\Include查看头文件WINDEF.H的定义：

typedef unsignedlong      DWORD;

typedefint                BOOL;

typedef unsignedchar      BYTE;

typedef unsignedshort     WORD;

typedeffloat              FLOAT;

typedefFLOAT              *PFLOAT;

typedef BOOLnear          *PBOOL;

typedef BOOLfar           *LPBOOL;

typedef BYTEnear          *PBYTE;

typedef BYTE far           *LPBYTE;

typedef intnear           *PINT;

typedef intfar            *LPINT;

typedef WORDnear          *PWORD;

typedef WORDfar           *LPWORD;

typedef longfar           *LPLONG;

typedef DWORDnear         *PDWORD;

typedef DWORDfar          *LPDWORD;

typedef voidfar           *LPVOID;

typedef CONST voidfar     *LPCVOID;

     从以上定义可以发现，WORD占2个字节，DWORD占4个字节。