JS 循环遍历JSON数据

JSON数据如：

{"options":"[{/"text/":/"王家湾/",/"value/":/"9/"},{/"text/":/"李家湾/",/"valu
e/":/"10/"},{/"text/":/"邵家湾/",/"value/":/"13/"}]"}

用js循环遍历的方法如下：

var data=[{name:"a",age:12},{name:"b",age:11},{name:"c",age:13},{name:"d",age:14}]; 
      for(var o in data){ 
        alert(o); 
        alert(data[o]); 
        alert("text:"+data[o].name+" value:"+data[o].age ); 
<script type="text/javascript"> 
function text(){ 
  var json = {"options":"[{/"text/":/"王家湾/",/"value/":/"9/"},{/"text/":/"李家湾/",/"value/":/"10/"},{/"text/":/"邵家湾/",/"value/":/"13/"}]"}  
  json = eval(json.options) 
  for(var i=0; i<json.length; i++) 
     alert(json[i].text+" " + json[i].value) 
</script>