c 函数

#include<stdio.h>


void fun1(int *num){
    num[0]=123;
    printf("sizeof(num)=%lu\n",sizeof(num));
    printf("num = %p,num+1 = %p \n",num,num+1);
}

void fun2(int num[400]){
    num[0]=123;
   // printf("sizeof(num)=%lu\n",sizeof(num));
    printf("num = %p,num+1 = %p \n",num,num+1);
}

int main(){
    int arr[400]={0};
    printf("sizeof(arr)=%lu\n",sizeof(arr));
    printf("arr=%p,arr+1=%p\n",arr,arr+1);
    printf("arr[0] = %p\n",&arr[0]);
    fun2(arr);
    return 0;
}

sizeof(arr)=1600
arr=0x7ffd549cc0c0,arr+1=0x7ffd549cc0c4
arr[0] = 0x7ffd549cc0c0
num = 0x7ffd549cc0c0,num+1 = 0x7ffd549cc0c4