动画可以添加微妙的视觉线索来通知用户关于 what 的事情在您的应用程序进行并提高您的 app 接口的心理模型。动画是特别有用的当屏幕状态更改，例如，当内容加载或采取新的行动变得可用。动画还可以添加精美的外观，向您的应用程序，使您的应用程序更高质量的感觉。但是要记住，过度使用动画或使用他们在错误的时间可以是有害的例如当他们导致的延误。本次培训课程演示您如何执行一些常见类型的动画，可以提高可用性和增加天赋而不干扰您的用户。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001056s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.080654s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000928s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001192s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000962s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003204s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000869s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003793s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014820s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001127s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 83456 [ RunTime:0.019477s ]
