指针作为函数参数（处理数组的四种方式）

//数组名传递给指针子参数  
#include 
#define N 3
float average(float * g); 
int main()
{
	float grade[N]={60,75,80};	
	printf("学生的平均成绩是：%.3f\n",average(grade)); 
	
}
float average(float * g)
{
	float *a=g; //这句话很重要 
	float ave,sum=0;  
	for(;g

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//数组名传递给数组名
#include 
#define N 3
float average(float grade[N]); 
int main()
{
	float grade[N]={60,75,80};	
	printf("学生的平均成绩是：%.3f\n",average(grade)); 
	
}
float average(float grade[N])
{
	int i; //
	float ave,sum=0;  
	for(i=0;i

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//指针传递给数组名
#include 
#define N 3
float average(float grade[N]); 
int main()
{
	float grade[N]={60,75,80};	
	float * a=grade; 
	printf("学生的平均成绩是：%.3f\n",average(a)); 
	
}
float average(float grade[N])
{
	int i; //
	float ave,sum=0;  
	for(i=0;i

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//指针传递给指针子参数  
#include 
#define N 3
float average(float * g); 
int main()
{
	float grade[N]={60,75,80};	
	float * a=grade; 
	printf("学生的平均成绩是：%.3f\n",average(a)); 
	
}
float average(float * g)
{
	float *a=g; //
	float ave,sum=0;  
	for(;g

//指针传递给指针子参数  
#include
#define N 3
float average(float * g); 
int main()
{
float grade[N]={60,75,80};
float * a=grade; 
printf("学生的平均成绩是：%.3f\n",average(a)); 

}
float average(float * g)
{
float *a=g; //这句话很重要 
float ave,sum=0;  
for(;g sum+=*g;
return ave=sum/N;

}