js解析json的小问题

Question

{"name":"jack","age":"17","sex":"boy"}用js怎样获取所有键的值？？

Answer 1

<script type="text/javascript">
var json={"name":"jack","age":"17","sex":"boy"};
for(var i in json)
 {alert("键名:"+i+",键值:"+json[i]);}
</script>

Answer 2

var json = {"name":"jack","age":"17","sex":"boy"};
alert(json.name);
alert(json.age);
alert(json.sex);

Answer 3

这个意思？
var json = {"name":"jack","age":"17","sex":"boy"};
var keys = [];
for (var key in json) {
    keys.push(key);
}
alert(keys.join("\n"));

Answer 4

或者保存所有值到任何数据结构里！    <script type="text/javascript">
    var json={"name":"jack","age":"17","sex":"boy"};
    var value=[];//保存数组值
    for(var i in json)
   {value.push(json[i]);}
   alert(value.join(","));
        </script>

Answer 5

var testStr = '{"name":"jack","age":"17","sex":"boy"}';
var obj = eval('(' + testStr + ')');for (var prop in obj) {
   alert(prop);
}这样？
var testStr = '{"name":"jack","age":"17","sex":"boy"}';
var obj = JSON.parse(testStr);for (var prop in obj) {
   alert(prop);
}

Answer 6

var testStr = '{"name":"jack","age":"17","sex":"boy"}';
var obj = JSON.parse(testStr);for (var prop in obj) {
   alert(prop);
}
红色的单引号删掉 我艹

Answer 7

<script type="text/javascript"> 
            var json={"name":"jack","age":"17","sex":"boy"};
var h='';
                for(var i in json)
                 {h+=i+"\n"}
 alert(h);
        </script> 

Answer 8

var testStr = '{"name":"jack","age":"17","sex":"boy"}';
var obj = eval('(' + testStr + ')');for (var prop in obj) {
   alert(prop);
}