[解决办法] <script> var jsonstring = "[{'id':'1','text':'Folder1','iconCls':'icon-ok','children':'[{\"id\":\"1\",\"text\":\"File1\"}]'}]"; var jsonObject = eval("("+jsonstring+")"); alert(jsonObject[0].text); var children = eval("("+jsonObject[0].children+")") alert(children[0].text); </script>