<table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_50133"> 这个不太懂 求解释 <div class="blockcode"> <div id="code_ztq"><ol> <li><?php</li> <li> $str='abcde';</li> <li> echo $str{3}; //d</li> <li> echo $str[3]; //d</li> </ol></div> <em onclick="copycode($('code_ztq'));">复制代码</em> </div> </td></tr></table> <div id="comment_50133" class="cm"> </div> <div id="post_rate_div_50133"></div> <br><br>
