指標陣列做函式引數
阿新 • • 發佈：2019-01-02
#include <stdio.h>
int main()
{
void average(float *p, int n);
void search(float (*p)[4], int n);
float score[3][4] = {{65, 67, 70, 60}, {80, 87, 90, 81}, {90, 99, 100, 98}};
average(*score, 12);
search(score,2);
return 0;
}
/*
void average(float *p, int n)
{
float *p_end;
float sum = 0, aver;
p_end = p + n - 1;
for(;p <= p_end; p++)
{
sum = sum + (*p);
aver = sum / n;
}
printf("average=%5.2f\n",aver);
}
void search(float (*p)[4], int n)
{
int i;
printf("the score of N0.%d are:\n",n);
for(i = 0; i < 4; i++)
{
printf("%5.2f ",*(*(p + n) + i));
}
printf("\n");
}*/
void average(float *p, int n)
{
float *p_end;
float aver,sum = 0;
p_end = p + n - 1;
for(;p <= p_end; p++)
{
sum = sum + *p;
}
aver = sum / n;
printf("%.2f\n",aver);
}
void search(float (*p)[4], int n)
{
int i;
for (i = 0; i < 4; i++)
{
printf("%.2f ",*(*(p + n) + i));
}
printf("\n");
}
int main()
{
void average(float *p, int n);
void search(float (*p)[4], int n);
float score[3][4] = {{65, 67, 70, 60}, {80, 87, 90, 81}, {90, 99, 100, 98}};
average(*score, 12);
search(score,2);
return 0;
}
/*
void average(float *p, int n)
{
float *p_end;
float sum = 0, aver;
p_end = p + n - 1;
for(;p <= p_end; p++)
{
sum = sum + (*p);
aver = sum / n;
}
printf("average=%5.2f\n",aver);
}
void search(float (*p)[4], int n)
{
int i;
printf("the score of N0.%d are:\n",n);
for(i = 0; i < 4; i++)
{
printf("%5.2f ",*(*(p + n) + i));
}
printf("\n");
}*/
void average(float *p, int n)
{
float *p_end;
float aver,sum = 0;
p_end = p + n - 1;
for(;p <= p_end; p++)
{
sum = sum + *p;
}
aver = sum / n;
printf("%.2f\n",aver);
}
void search(float (*p)[4], int n)
{
int i;
for (i = 0; i < 4; i++)
{
printf("%.2f ",*(*(p + n) + i));
}
printf("\n");
}