数组名就是数组首地址

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#include<stdio.h>
#include<string.h>
void main()
{
char a[20]={"abcdefg"};
char b[20]={"higklmn"};
strcpy(a+7,b);
char *x;
char *y;
x=a+1;
y=&a[1];
printf("%s\n",a);
// printf("%s\n",b);
printf("%p\n",x);
printf("%p\n",y);
}