哪位高手看看 哪的错

[Apanqingyun]

#include <stdio.h>
#include <stdlib.h>
#include<math.h>
#include<dos.h>
#include<conio.h>
#include<time.h>
struct time
{
unsigned char ti_mine;
unsigned char ti_hour;
unsigned char ti_hund;
unsigned char ti_second;
}
struct data
{
int da_year;
char da_day;
char da_moon;
}
int main()
{
// struct time curtime;
float hour,mine,second;
do
{
printf(" =============================================\n");
printf(" | 现在时间是 |\n");
printf(" =============================================\n");
gettime(time);
if((float)curtime.ti_hour<=12)
{
printf("上午");
if((float)curtime.ti_hour<10) printf("0") ;
printf("%0f:",(float)curtime.ti_hour);
}
else
{
printf("下午");
//if(())
printf("%0f:",(float)curtime.ti_hour);

}
if((float)curtime.ti_mine<10)printf("0");
printf("%0f:",(float)curtime.ti_mine);
if((float)curtime.ti_second<10)printf("0");
printf("%0f:",(float)curtime.ti_second);
sleep(1);
clrscr();
}while(1);
system("PAUSE");
return 0;
}

[wanjingwei]

struct time
{
unsigned char ti_mine;
unsigned char ti_hour;
unsigned char ti_hund;
unsigned char ti_second;
}; //注意分号
struct data
{
int da_year;
char da_day;
char da_moon;
} ;

[十八道胡同]

struct time
{
unsigned char ti_mine;
unsigned char ti_hour;
unsigned char ti_hund;
unsigned char ti_second;
};

[昵称很不好取]

有点乱啊，我看了下，大致如下问题，楼主可以先解决下：
1，定义完一个结构体需要加分号，struct xx{};
2，gettime(time) —— 这个函数我这里报错，取系统时间可采用如下方式：
SYSTEMTIME sys;
GetLocalTime(&sys);
3，结构体中的东西最好初始化一下再用

[昵称很不好取]

对不起，我土了，gettime(time)这个函数是C语言库函数

[Apanqingyun]

这个程序在DEV_CPP里通不过

[Apanqingyun]

我改成这样还是有错
就是这个活的系统时间有问题
[Linker error] undefined reference to `gettime'
[Linker error] undefined reference to `clrscr'
这个清屏也不对吗
#include <stdio.h>
#include <stdlib.h>
#include<math.h>
#include<dos.h>
#include<conio.h>
#include<time.h>
struct time
{
unsigned char ti_mine;
unsigned char ti_hour;
unsigned char ti_hund;
unsigned char ti_second;
};
struct data
{
int da_year;
char da_day;
char da_moon;
};
int main()
{
struct time curtime;
float hour,mine,second;
do
{
printf(" =============================================\n");
printf(" | 现在时间是 |\n");
printf(" =============================================\n");
gettime(&curtime);
if((float)curtime.ti_hour<=12)
{
printf("上午");
if((float)curtime.ti_hour<10) printf("0") ;
printf("%0f:",(float)curtime.ti_hour);
}
else
{
printf("下午");
//if(())
printf("%0f:",(float)curtime.ti_hour);

}
if((float)curtime.ti_mine<10)printf("0");
printf("%0f:",(float)curtime.ti_mine);
if((float)curtime.ti_second<10)printf("0");
printf("%0f:",(float)curtime.ti_second);
sleep(1);
clrscr();
}while(1);
system("PAUSE");
return 0;
}

[太乙]

lz可上msdn上查它一查！