这个有点搞不懂
看书里的例子,这个看不懂,里面的int char long 是变量么? 为什么不用声明?
#include <stdio.h>
int main ()
{
printf("Tyep int has a size of %u bytes.\n",sizeof(int));
printf("Tyep char has a size of %u bytes.\n",sizeof(char));
printf("Tyep long has a size of %u bytes.\n",sizeof(long));
printf("Tyep double has a size of %u bytes.\n",
sizeof(double));
return 0;
}