なんか改行多いって怒られるので分けます スミマセン
//ソースコード
int main(void){
char str1[] = "ABCDEFG";
char *str2 = "ABCDEFG";
char str3[8];
str3[0] = 'A';
str3[1] = 'B';
str3[2] = 'C';
str3[3] = 'D';
str3[4] = 'E';
str3[5] = 'F';
str3[6] = 'G';
str3[7] = '\0';
printf("str1:%s, sizeof str1:%lx\n",str1, sizeof str1);
printf("str2:%s, sizeof str2:%lx\n",str2, sizeof str2);
printf("str3:%s, sizeof str3:%lx\n",str2, sizeof str3);
printf("str1 = str2 :%d\n", strcmp(str1,str2));
printf("str2 = str3 :%d\n", strcmp(str2,str3));
printf("str3 = str1 :%d\n", strcmp(str3,str1));
}