<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>Document</title> </head> <body> </body> </html> <script> var json={100, height:100 , left:50, top:100} for( k in json) { console.log(k); //k是属性 console.log(json[k]); //json[k]得到属性的值 console.log(k+":"+json[k]); } </script>
注意:
遍历json ,k 是属性, json[k]是属性的值