Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
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Filename: core/Controller.php
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File: /mnt/web/mokecn/application/controllers/Study.php
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Function: require_once
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Filename: core/Controller.php
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Filename: core/Controller.php
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Filename: core/Controller.php
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Filename: core/Controller.php
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Filename: core/Controller.php
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Filename: core/Controller.php
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Function: __construct
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Message: session_start(): Session cannot be started after headers have already been sent
Filename: libraries/Session.php
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Filename: core/Loader.php
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File: /mnt/web/mokecn/application/models/study/Study_model.php
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Filename: database/DB_driver.php
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File: /mnt/web/mokecn/application/models/study/Study_model.php
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Filename: core/Loader.php
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Function: require_once
书画揭裱的重要性，装裱也叫“装磺、“装池”、“裱背”，是我国特有的一种保护和美化书画以及碑帖的技术，就像西方的油画，完成之后也要装进精美的画框，使其能够达到更高的艺术美感。
那么中国画装裱的程序是怎样的呢？一般是先用纸托裱在绘画作品的背后，再用绞、绢、纸等镶边，然后安装轴杆成版面。传统的装裱是多种多样的，但其成品按形制可分为挂轴，手卷，册页三大类。原裱的绘画只有托裱画心、镶覆、砑装三个步骤。只是画心的托裱是整个装璜工艺中的重要工序。而旧书画的重新装裱则就相当困难了。
收藏书画的朋友，时常遇到的一个问题就是古旧书画的揭裱。大多数的书画收藏者购得古旧书画后，便很随意地就近找人揭裱了事。这是断然不可的，因为这直接关系到一件古旧书画作品的成全与毁坏以及寿命的永暂。
古旧书画能不重新揭裱的尽可能不要揭裱，因为每揭裱一次，要经过热水闷烫、清水淋洗、化学药品洗霉去污和修补、全色等多道工序，耗费很多时间，这些无疑会使古旧书画大受损伤。所以古人曾说古旧书画非到了“蝴蝶翩翩舞”的破烂程度，一般不要重新揭裱。
