js遍历JSON的属性

function test(){

  var json = [{dd:'SB',AA:'东东',re1:123},{cccc:'dd',lk:'1qw'}];
  for(var i=0;i<json .length;i++){
      for(var key in json [i]){
          alert(key);
      }
  }

}

http://blog.sina.com.cn/s/blog_6f14574b0100mvfg.html