简书链接:c语言数组与大小的理解
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#include <stdio.h>
int main(int args,const char* argv[]){
    unsigned values[5];
    printf("\n address %0x \n",&values);
    
    printf("hello\n");
    int z[1][2];//2*4 8个字节
    int y[1];//4个字节
    int a[3][3];
    int b[2][2]={{1,2},{2,3}};
    int c[][3]={1,2,3,4,5,6,7,8,9};//元素有3个
    int d=0;//32位操作系统 一个字节是4位.32个比特位. 1个字节8个比特位.
    char e='F';
    printf("add ress %d \n",&a);
    
      printf("add ress %d \n",&a[0]);
    printf("add ress %d \n",&a[0][0]);
    // printf(sizeof(&a));
      printf("z size :%d\n",sizeof(z));
     printf("y size :%d\n",sizeof(y));
     printf("a size :%d\n",sizeof(a));
     printf("B size :%d\n",sizeof(b));
     printf("c size :%d\n",sizeof(c));
    printf("d size :%d\n",sizeof(d));
      printf("e char size :%d\n",sizeof(e));
    printf("b [0][1]=%d\n",b[0][1]);
    return 0;
}