文章标题

传入函数的数组是如何工作

#include<stdio.h>

void minmax(int a[],int len,int*max,int *min);//inta[]可以换成int *a 

int main()
{
    int a[]={1,2,3,4,5,6,7,8,9,10,11,12,14,17,19,22,43,55};
    int min,max;
    printf("minmax sizeof(a)=%lu\n",sizeof(a));
    printf("main a = %p\n",a);
    minmax(a,sizeof(a)/sizeof(a[0]),&min,&max);
    printf("min=%d,max=%d\n",min,max);

    return 0;
}

void minmax(int a[],int len,int *min,int *max)//函数里面的数组就变成指针啦！！！ 
{
    int i;
    printf("minmax sizeof(a)=%lu\n",sizeof(a));
    printf("main a = %p\n",a);
     a[0]=1000;
    *min = *max = a[0];
    for(i=1;i<len;i++)
    {
        if(a[i]<*min){
            *min = a[i];
        }
        if(a[i]>*max){
            *max = a[i];
        }
    }
}