找到类似这段代码，把红色的加进去合适的位置即可！
<!--{hook thread_username_before.htm}--> <span class="username"> <a href="<?php echo url("user-$thread[uid]");?>" class="text-muted font-weight-bold"><?php echo $thread['username'];?> </a> <span style="font-size:10px;color:#868e96;"> <a>（UID：<?php echo $thread['user']['uid'];?>）</a</span> </span>
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UID:1
