ThinkPHP报错：Call to undefined function Think\C() in ThinkPHP/Library/Think/Think.class.php

ThinkPHP报错：Call to undefined function Think\C() in ThinkPHP/Library/Think/Think.class.php

原因是debug设置为false后，原来 Runtime下目录不存在了, 重新生成就好（先设置为true）。