求助：一个字符转义的问题！

这样写呢？
var p = ["picValue","..."]for(var i= 0;i<p.length;i++){
var objname = ":radio[name='"+p[0]+"']:first";
$(objname).attr("checked",true);
}

var p = ["picValue","..."]for(var i= 0;i<p.length;i++){$(":radio[name='"+p[i]+"']:first").attr("checked",true);
}

这个貌似用 eval()处理可以

$(function(){

var arr = ["picValue","gpsValue"];
for(var i=0;i<arr.length;i++){

$(":checkbox:#'"+arr[i]+"'").click(function() {
//这里以前的写法是$(":checkbox:#picValue")
if($(this).attr("checked") == false){

$(":radio[name='"+arr[i]+"']").attr("checked",false);

}else{
$(":radio[name='picValue']:first").attr("checked",true);
//这里的picValue我想用arr[0]替换
}
});
}
});
是这样的！

$(":checkbox:#'"+arr[i]+"'")
==》
$("#"+arr[i])完毕

把 $(":radio[name='picValue']:first").attr("checked",true);中的picValue用arr[i]替换该如何替换 $(":radio[name='"+arr[i]+"']").attr("checked",true);上面这种方式不正确，请给出正确的方式

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<title>Untitled Document</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<script type="text/javascript">
//radio的值
var radio_value = 'loveu';
//checkbox的值，缺少is_3
var checkbox_value = new Array("is_1","is_2","is_4","is_5","is_6");
$(function(){
//首先，这个radio每次只能选择一个
$(":radio[name='"+radio_value+"']:first").attr("checked",true);
//checkbox的选择
$.each(checkbox_value,function(index,el){
$(":checkbox[name='"+el+"']:first").attr("checked",true);
});
});
</script>
</head>
<body>
<br>
<input type="radio" name="love" value="01">爱
<input type="radio" name="love" value="02">不爱
<input type="radio" name="love" value="03">可以爱
<input type="radio" name="love" value="04">还是爱
<input type="radio" name="love" value="05">最终爱
<input type="radio" name="love" value="06">不得爱
<br>
<input type="radio" name="loveu" value="01">爱u
<input type="radio" name="loveu" value="02">不爱u
<input type="radio" name="loveu" value="03">可以爱u
<input type="radio" name="loveu" value="04">还是爱u
<input type="radio" name="loveu" value="05">最终爱u
<input type="radio" name="loveu" value="06">不得爱u
<br>
<input type="checkbox" name="is_1" value="01">爱u
<input type="checkbox" name="is_2" value="02">不爱u
<input type="checkbox" name="is_3" value="03">可以爱u
<input type="checkbox" name="is_4" value="04">还是爱u
<input type="checkbox" name="is_5" value="05">最终爱u
<input type="checkbox" name="is_6" value="06">不得爱u
</body>
</html>

$(":checkbox[name='"+el+"']").attr("checked",true);
去掉:first就行，这里没必要用

楼主是不是把p[i]写成p[0]了？

<html>
<head>
<title>测试JavaScript</title>
<script type="text/javascript" src="jquery-1.6.1.js"></script>
<script type="text/javascript">
$(function(){
            var arr = ["picValue","gpsValue"];
            for(var i=0;i<arr.length;i++){
                $("#"+arr[i]+":checkbox").click(function() {
                if(!$(this).attr("checked")){
                    $(":radio[name='"+this.id+"']").attr("checked",false);

                }else{
                    $(":radio[name='"+ arr[0] + "']").attr("checked",true);
                    //这里的picValue我想用arr[0]替换
                }
                });
            }
    }); </script>
</head>
<body>
   <input type="checkbox" id="picValue" />
   <input type="checkbox" id="gpsValue" />
<input type="radio" name="picValue" />
<input type="radio" name="gpsValue" />
</body>
</html>这样呢？

var p = ["picTest","..."]
$(":radio:#'"+p[0]+"':first").attr("checked",true)

$(function() {
                var p = ['Rd0', 'Rd1'];
                for (var i = 0; i < p.length; i++) {
                    $(":radio[name='" + p[i] + "']:first").attr('checked', 'checked');
                }
            })

没有问题吧.
<html><head>
<script type="text/javascript" src="jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $(":button").click(function(){
     var p = ["a1","a2","a3"] for(var i= 0;i<p.length;i++){    $(":radio[name='"+p[i]+"']").attr("checked",true);
}  });
});
</script>
</head><body>
<p>If you click on me, I will disappear.</p>
<input type='radio' name='a1' >a1<br>
<input type='radio' name='a2' >a1<br>
<input type='radio' name='a3' >a1<br>
<button>choose</button>
</body></html>

调试易

求助：一个字符转义的问题！

解决方案 »