alert(obj);----弹出 [object object]--->这是一个对象--首先他的对象是自定义的情况下，才会出现【object object】第一个object代表的是自定义对象的属性，第二个代表的是自定义对象的方法
JSON.stringify(obj) -->json将对象转化为字符串---使用stringify这个是json的转换字符串的方法，已经封装好的
json字符串转化成json对象
// jquery的方法
var jsonObj = $.parseJSON(jsonStr) //js 的方法 var jsonObj = JSON.parse(jsonStr)json对象转化成json字符串
//js方法
var jsonStr1 = JSON.stringify(jsonObj)例如
例如：
<script type="text/javascript"> var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]'; // var jsonObj = $.parseJSON(jsonStr); var jsonObj = JSON.parse(jsonStr) console.log(jsonObj) var jsonStr1 = JSON.stringify(jsonObj) console.log(jsonStr1+"jsonStr1") </script>json对象转化成数组
<script type="text/javascript"> var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]'; // var jsonObj = $.parseJSON(jsonStr); var jsonObj = JSON.parse(jsonStr) console.log(jsonObj) var jsonStr1 = JSON.stringify(jsonObj) console.log(jsonStr1+"jsonStr1") var jsonArr = []; for(var i =0 ;i < jsonObj.length;i++){ jsonArr[i] = jsonObj[i]; } console.log(typeof(jsonArr)) </script>json字符串转化成json对象
// jquery的方法
var jsonObj = $.parseJSON(jsonStr) //js 的方法 var jsonObj = JSON.parse(jsonStr)json对象转化成json字符串
//js方法
var jsonStr1 = JSON.stringify(jsonObj)例如
例如：
<script type="text/javascript"> var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]'; // var jsonObj = $.parseJSON(jsonStr); var jsonObj = JSON.parse(jsonStr) console.log(jsonObj) var jsonStr1 = JSON.stringify(jsonObj) console.log(jsonStr1+"jsonStr1") </script>json对象转化成数组
<script type="text/javascript"> var jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]'; // var jsonObj = $.parseJSON(jsonStr); var jsonObj = JSON.parse(jsonStr) console.log(jsonObj) var jsonStr1 = JSON.stringify(jsonObj) console.log(jsonStr1+"jsonStr1") var jsonArr = []; for(var i =0 ;i < jsonObj.length;i++){ jsonArr[i] = jsonObj[i]; } console.log(typeof(jsonArr)) </script>