bugfix

git-svn-id: https://plugins.svn.wordpress.org/cn-excerpt/trunk@1003556 b8457f37-d9ea-0310-8a92-e5e31aec5664
更新

git-svn-id: https://plugins.svn.wordpress.org/cn-excerpt/trunk@1003558 b8457f37-d9ea-0310-8a92-e5e31aec5664
更新

git-svn-id: https://plugins.svn.wordpress.org/cn-excerpt/trunk@1003560 b8457f37-d9ea-0310-8a92-e5e31aec5664