写一个C程序来测大小端模式

  #include <stdio.h>

union text
{
unsigned int a;
unsigned char c;
};
   int main()
{
   union text t;
   t.a = 0x1234abcd;
   if(t.c == 0x12)
   printf("大段模式\n");
   else if(t.c == 0xcd)
   printf("小端模式\n");
return 0;
}