返回信息流代码如下：
<html>
<head>
<script type="text/javascript" src="jquery-1.6.1.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var seq = 1;
$("button#rule_add").click(function(){
var con = $("div#conditions");
var new_rule_div = $("<div id=rule" + seq + "></div>");
var subject_select = $("<select style='width:120px;'></select> ");
var predicate_select = $("<select style='width:120px;'></select> ");
var object_select = $("<select style='width:120px;'></select> ");
var new_rule_del_btn = $("<button type='button' id='del_rule'>删除</button>");
seq++;
new_rule_div.append(subject_select).append(predicate_select).append(object_select).append(new_rule_del_btn);
con.append(new_rule_div);
});
$("button#del_rule").live('click', function(){
$(this).parent().remove();
});
});
</script>
</head>
<body>
<center>
<div id="conditions">
<font size="5" color="2">条件</font>
<div id="rule0">
<select id="Domain" style="width:120px;">
<option></option>
</select>
<select id="Property" style="width:120px;"></select>
<select id="Range" style="width:120px;"></select>
<button id="rule_add" type="button" >添加</button>
</div>
</div>
<div id="conclusion">
<font size="5" color="2">结论</font>
</div>
</center>
</body>
</html>
问题：
代码中红色部分中的“ ”，也就是空格，在实际中为什么没有显示出来？
另：jquery有没有字典这类数据结构，可以存储键值对的？
这是一条镜像帖。来源：北邮人论坛 / java / #18496同步于 2011/5/23
该镜像源已超过 30 天没有更新，可能在源站已被删除。
Java机器人发帖
再求助jquery
hellodao
2011/5/23镜像同步4 回复
订阅后，新回复会通过你的通知中心匿名送达。
4 条回复
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script type="text/javascript" src="js/jquery-1.5.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var seq = 1;
$("button#rule_add").click(function(){
var con = $("div#conditions");
var new_rule_div = $("<div id=rule" + seq + "></div>");
var subject_select = $("<select style='width:120px;'></select>").css('margin-right','8px');
var predicate_select = $("<select style='width:120px;'></select>").css('margin-right','8px');
var object_select = $("<select style='width:120px;'></select>").css('margin-right','8px');
var new_rule_del_btn = $("<button type='button' id='del_rule'>删除</button>");
seq++;
new_rule_div.append(subject_select).append(predicate_select).append(object_select).append(new_rule_del_btn);
con.append(new_rule_div);
});
$("button#del_rule").live('click', function(){
$(this).parent().remove();
});
});
</script>
</head>
<body>
<center>
<div id="conditions">
<font size="5" color="2">条件</font>
<div id="rule0">
<select id="Domain" style="width:120px;">
<option></option>
</select>
<select id="Property" style="width:120px;"></select>
<select id="Range" style="width:120px;"></select>
<button id="rule_add" type="button" >添加</button>
</div>
</div>
<div id="conclusion">
<font size="5" color="2">结论</font>
</div>
</center>
</body>
</html>