誰帮忙写一个字符串比较函数

[shanshanboy]

小弟是菜鸟，有一个字符串比较函数mystricmp()，
就是做不对，哪位大哥出手帮忙!谢谢!
#include "stdio.h"
mystricmp(char *ss1,char *ss2)
{
//在此处加入代码
}


void main()
{
char ss[80],dd[80];
printf("input first string:");
scanf("%s",ss);
printf("input second string:");
scanf("%s",dd);
if(mystricmp(ss,dd)>0)
printf("%s is larger than %s\n",ss,dd);
else if(mystricmp(ss,dd)<0)printf("%s is smaller than %s\n",ss,dd);
else printf("%s is equal to %s\n",ss,dd);
}