结构数组的指针定义

1万 · 2011-10-22 12:13

unsigned char data *PTest ;
struct
{
unsigned char AlarmNum;

unsigned char AlarmStatus; /*告警状态  0:正常*/

unsigned char AlarmTable;    /*告警表下标*/
unsigned char StartTime[6]; /*告警开始时间*/
unsigned char EndTime[6];    /*告警结束时间*/
unsigned char temp;
}HistoryAlarm[32];    /*每个记录16个字节*/

//pTest = (unsigned char)HistoryAlarm;

请教大家 HistoryAlarm 数组的指针怎样定义，才能是指针指向HistoryAlarm[0].AlarmNum的地址

pTest = (unsigned char)HistoryAlarm; 这样定义是否可行？  急急！

1万 · 2011-10-22 12:17

结构数组还有点了解，再加个指针就不是很懂了

1万 · 2011-10-22 12:20

pTest = (unsigned char * )HistoryAlarm
or
pTest = &HistoryAlarm[0].AlarmNum

1万 · 2011-10-22 12:24

typedef struct
{
unsigned char AlarmNum;

unsigned char AlarmStatus; /*告警状态  0:正常*/

unsigned char AlarmTable;    /*告警表下标*/
unsigned char StartTime[6]; /*告警开始时间*/
unsigned char EndTime[6];    /*告警结束时间*/
unsigned char temp;
}THistoryAlarm;    /*每个记录16个字节*/
THistoryAlarm  HistoryAlarm[32];

1万 · 2011-10-22 12:27

请问楼上，能否将指针定义说明一下

1万 · 2011-10-22 12:31

unsigned char data *PTest ;
struct
{
unsigned char AlarmNum;

unsigned char AlarmStatus; /*告警状态  0:正常*/

unsigned char AlarmTable;    /*告警表下标*/
unsigned char StartTime[6]; /*告警开始时间*/
unsigned char EndTime[6];    /*告警结束时间*/
unsigned char temp;
}HistoryAlarm[32],*pHistoryAlarm;    /*每个记录16个字节*/

pHistoryAlarm = HistoryAlarm;
PTest = &pHistoryAlarm->AlarmNum;
// 由于AlarmNum是结构体的第一个元素，下面这样写也是可以的
PTest = (unsigned char*)pHistoryAlarm;

只看该作者 · 2011-10-28 09:19

这么牛X的语法用在笙泉将大大增加其功效啊