Fatal error: Uncaught Error: Call to undefined function Think\C() in /web/caobao/Include/Library/Think/Think.class.php:307
Stack trace:
#0 /web/caobao/Include/Library/Think/Think.class.php(276): Think\Think::halt()
#1 [internal function]: Think\Think::fatalError()
#2 {main}
thrown in /web/caobao/Include/Library/Think/Think.class.php on line 307