这个算数验证码怎么写

mhxywwl

<td class="tl"><span class="f_red">*</span> 验证问题</td>
<td class="tr"><span onmouseover="if(Dd('question').style.display=='none') reloadquestion();"><span id="question" style="display:none;"><span id="questionstr"></span>&nbsp;&nbsp;<a href="javascript:reloadquestion();">[换个问题]</a><br/></span>
<input name="answer" id="answer" type="text" size="30"/><span id="canswer"></span>
</span>
<script type="text/javascript">
function reloadquestion() {
Dd('question').style.display = '';
Dd('canswer').innerHTML = '';
Dd('answer').value = '';
Dd('canswer').innerHTML = '';
$('#destoon_question').remove();
s = document.createElement("script");
s.type = "text/javascript";
s.id = "destoon_question";
s.src = "http://www.nongcun5.com/api/captcha.png.php?action=question&refresh="+Math.random()+".js";
document.body.appendChild(s);
}
function checkanswer(s) {
s = s.trim();
var t = encodeURIComponent(s);
if(t.indexOf('%E2%80%86') != -1) s = decodeURIComponent(t.replace(/%E2%80%86/g, ''));
if(s.length < 1) {
Dd('answer').focus; return;
}
$.post(AJPath, 'action=question&answer='+s,
function(data) {
if(data == '0') {
Dd('canswer').innerHTML = '&nbsp;&nbsp;<img src="http://www.nongcun5.com/skin/default/image/check_right.gif" align="absmiddle"/>';
} else {
Dd('answer').focus;
Dd('canswer').innerHTML = '&nbsp;&nbsp;<img src="http://www.nongcun5.com/skin/default/image/check_error.gif" align="absmiddle"/>';
}
}
);
}
$(function() {
$('#answer').bind('keyup blur', function() {
checkanswer($('#answer').val());
});
});
</script> <span id="danswer" class="f_red"></span></td>
</tr>
<tr>

作坊

http://www.wzdr.cn/thread-82940-1-1.html

shuangyingba

楼主可以结贴了

江湖人称张学友

先获取 问题

.php?action=question&refresh{随机时间轴}.js

[登录前提交网址1]http://www.nongcun5.com/api/captcha.png.php?action=question&refresh{随机时间轴}.js[/登录前提交网址1]
[发布前提交1参数1]document.getElementById\("questionstr"\).innerHTML = "(.*?)"[/发布前提交1参数1]