使用织梦的站长在建站的时候使用版权信息标签{dede:global.cfg_powerby/}，会发现我们设置的版权信息后面会多出Power by DedeCms并附带织梦官网的链接，有的时候会影响我们网站的布局，这时候需要取消掉这个链接，就需要改动一个php文件，步骤如下：（本站建议保留官方链接，如果没必要去除版权信息的话，最好建议保留，尊重版权信息。）

打开include/dedesql.class.php

找到第588行的代码：

$arrs1 = array(0x63,0x66,0x67,0x5f,0x70,0x6f,0x77,0x65,0x72,0x62,0x79);
$arrs2 = array(0x20,0x3c,0x61,0x20,0x68,0x72,0x65,0x66,0x3d,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,
0x77,0x77,0x77,0x2e,0x64,0x65,0x64,0x65,0x63,0x6d,0x73,0x2e,0x63,0x6f,0x6d,0x20,0x74,0x61,0x72,
0x67,0x65,0x74,0x3d,0x27,0x5f,0x62,0x6c,0x61,0x6e,0x6b,0x27,0x3e,0x50,0x6f,0x77,0x65,0x72,0x20,
0x62,0x79,0x20,0x44,0x65,0x64,0x65,0x43,0x6d,0x73,0x3c,0x2f,0x61,0x3e);

删除即可，这时候我们用{dede:global.cfg_powerby/}标签就不会出现多余的字符了。