这段代码是检测字符串s中是否有字符串t,但是看不懂  for (t_temp = t; *t_temp == *m_temp; t_temp++, m_temp++);这句代码是怎么个逻辑顺序，请指教下！

uchar *LookFor_Str(uchar *s, uchar *t)
{
uchar    *s_temp;      
uchar    *m_temp;      
uchar    *t_temp;     
if (s == 0 || t == 0) return 0;
for (s_temp = s; *s_temp != ''; s_temp++)
{
  m_temp = s_temp;
  for (t_temp = t; *t_temp == *m_temp; t_temp++, m_temp++);
  if (*t_temp == '')
                  return s_temp;
}
return 0;
}

此帖出自小平头技术问答