json字符串转化为json对象

var text = '{ "sites" : [' +
'{ "name":"Runoob" , "url":"www.runoob.com" },' +
'{ "name":"Google" , "url":"www.google.com" },' +

'{ "name":"Taobao" , "url":"www.taobao.com" } ]}';

var obj = JSON.parse(text);