21世纪科技的发展 ,给人们带来的是日新月异的变化 ,科技以人为本 ,科技重在应用 ,科技不再是一堆冷冰冰的机器 ,令人高不可攀 .迅捷、方便、充满人性化的产品已越来越渗透进人们生活的每一领域。数码相机－－这一曾让人望而却步的东西，已更多的进入了普通家庭、办公场所。拥 The development of science and technology in the 21st century has brought about the rapid changes in the world. With people-oriented science and technology as the most important application of science and technology, science and technology are no longer a pile of ice-cold machines and are unmanageable. The products that are quick, convenient and full of humanity have been More and more penetration into every area of ​​people’s life. Digital cameras - something that once was prohibitive, has been more into the ordinary family, office space. Hold