三、修改模板中写死的字符限制数：
1、找到文件templatedefaultforumpost_editor_extra.htm的25到31行：
<!--{if $_G[gp_action] != 'reply'}-->
<span><input type="text" name="subject" id="subject" class="px" value="$postinfo[subject]" {if $_G[gp_action] == 'newthread'}onblur="if($('tags')){relatekw('-1','-1'{if $_G['group']['allowposttag']},function(){extraCheck(4)}{/if});doane();}"{/if} style="width: 25em" tabindex="1" /></span>
<!--{else}-->
<span id="subjecthide" class="z">RE: $thread[subject] [<a href="javascript:;">{lang modify}</a>]</span>
<span id="subjectbox" style="display:none"><input type="text" name="subject" id="subject" class="px" value="" style="width: 25em" /></span>
<!--{/if}-->
<span id="subjectchk"{if $_G[gp_action] == 'reply'} style="display:none"{/if}>{lang comment_message1} <strong id="checklen">80</strong> {lang comment_message2}</span>
修改为下面代码：
<!--{if $_G[gp_action] != 'reply'}-->
<span><input type="text" name="subject" id="subject" class="px" value="$postinfo[subject]" {if $_G[gp_action] == 'newthread'}onblur="if($('tags')){relatekw('-1','-1'{if $_G['group']['allowposttag']},function(){extraCheck(4)}{/if});doane();}"{/if} style="width: 25em" tabindex="1" /></span>
<!--{else}-->
<span id="subjecthide" class="z">RE: $thread[subject] [<a href="javascript:;">{lang modify}</a>]</span>
<span id="subjectbox" style="display:none"><input type="text" name="subject" id="subject" class="px" value="" style="width: 25em" /></span>
<!--{/if}-->
<span id="subjectchk"{if $_G[gp_action] == 'reply'} style="display:none"{/if}>{lang comment_message1} <strong id="checklen">120</strong> {lang comment_message2}</span>
2、找到文件templatedefaultforumforumdisplay_fastpost.htm31-32行：
<input type="text" id="subject" name="subject" class="px" value="" tabindex="11" style="width: 25em" />
<span>{lang comment_message1} <strong id="checklen">80</strong> {lang comment_message2}</span>
修改为：
<input type="text" id="subject" name="subject" class="px" value="" tabindex="11" style="width: 25em" />
<span>{lang comment_message1} <strong id="checklen">120</strong> {lang comment_message2}</span>
四，修改函数验证提示：
找到文件source/function/function_post.php的346-348行：
if(dstrlen($subject) > 80) {
return 'post_subject_toolong';
}
