郁闷!
/*输入五个学生的数据，并打印出来*/
#include <stdio.h>
typedef struct {
long num;
char name[10];
float score0;
float score1;
float score2;
}DATA;
main(){
DATA sd[5];
int i;
puts( "Please 5 students Number Name and Score ");
for (i=0;i <5;i++)
scanf( "%ld %s %f %f %f ",&sd[i].num,sd[i].name,&sd[i].score0,&sd[i].score1,&sd[i].score2);

for (i=0;i <5;i++)
printf( "%ld %s %f %f %f\n ",sd[i].num,sd[i].name,sd[i].score0,sd[i].score1,sd[i].score2);
}
/*
在turbo 2.0下运行
输入 120 china 78.0 80.3 72.4 <回车>
出现出错提示：
scanf : floating point formats not linked
Abnormal program termination
而在VC下运行没有出错提示!
*/

[解决办法]
修改后的代码如下，在TC上运行过了，没问题。。。

#include <stdio.h>
#include <stdlib.h>
typedef struct
{
long num;
char name[10];
float score0;
float score1;
float score2;
}DATA;
main()
{
DATA sd[5];
int i;
float a,b,c;
puts( "Please 5 students Number Name and Score ");
for (i=0;i <5;i++)
{
scanf( "%ld %s %f %f %f ",&sd[i].num,sd[i].name,&a,&b,&c);
sd[i].score0 = a;
sd[i].score1 = b;
sd[i].score2 = c;
}

for (i=0;i <5;i++)
printf( "%ld %s %f %f %f\n ",sd[i].num,sd[i].name,sd[i].score0,sd[i].score1,sd[i].score2);
}