把admin_1[1]={"li","1002"}和admin_2[1]={"liu","1012"}放入main函数里
int main()
{
admin1 admin_1[adminnum]=
{
{"zhang","1000"},
{"li","1002"}
}; //后台管理员初始化用户名密码
admin2 admin_2[adminnum]=
{
{"wang","1010"},
{"liu","1012"}
}; //前台管理员初始化用户名密码
int x=login(admin_1,admin_2);
........
return 0;
}