您当前的访问请求当中含有非法字符，已经被系统拒绝

sakura111

为甚么在搜索时总会出现这种情况呢?Discuz! System Error您当前的访问请求当中含有非法字符，已经被系统拒绝
PHP Debug
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[Line: 0022]search.php(discuz_application->init) [Line: 0071]source/class/discuz/discuz_application.php(discuz_application->_init_misc) [Line: 0558]source/class/discuz/discuz_application.php(discuz_application->_xss_check) [Line: 0359]source/class/discuz/discuz_application.php(system_error) [Line: 0023]source/function/function_core.php(discuz_error::system_error) [Line: 0024]source/class/discuz/discuz_error.php(discuz_error::debug_backtrace)