AS3的JSON使用

 
  // 
  将Object对象转换类JSON 
  
             
  var obj: 
  Object = new  
  Object(); 
  
            obj.aa = "aa"; 
  
            obj.math = Math.random(); 
  
             
  var json: 
  String = JSON.encode(obj); 
  
             
  
             
  var persons:* = JSON.decode(json); 
  
             
  for ( 
  var str: 
  String  
  in persons) {         
  // 
  遍历键 
  
                trace(str);  
  
            } 
  
             
  for each ( 
  var val: 
  String  
  in persons) {   
  // 
  遍历值 
  
                trace(val) 
  
            } 
 

 

 

 
  // 
  数组对象 
  
             
  var objectArray: Array = new Array( {"type":"pic", "num":"1" }, 
  
                                                {"type":"text", "num":"2" }, 
  
                                                {"type":"swf", "num":"3" }, 
  
                                                {"type":"html", "num":"4" } 
  
                                             ); 
  
             
  var json1: 
  String = JSON.encode(objectArray); 
  
             
  // 
  trace(json1); 
  
             
  var persons1:Array = JSON.decode(json1); 
  
             
  
             
  for ( 
  var name:*  
  in persons1) {    
  // 
  遍历键 
  
                 
  // 
  trace(name); 
  
            } 
  
             
  for each ( 
  var s:*  
  in persons1) {  
  // 
  遍历值 
  
                 
  // 
  trace(s.type); 
  
            }