OS X版本:10.15.6
INFO-> ["Nigel Rees","Evelyn Waugh","Herman Melville","J....OS X版本:10.15.6
INFO-> ["Nigel Rees","Evelyn Waugh","Herman Melville","J....OS X版本:10.15.6
INFO-> [19.95,8.95,12.99,8.99,22.99]
可以看到可以不指定具体的key也可以获取固定层级的某个key的value。...OS X版本:10.15.6
INFO-> [{"color":"red","price":19.95},[{"author":"Nigel Rees","price":8.95,"category"...OS X版本:10.15.6
INFO-> [32,32,4,23]
下期讲讲如果处理json数组,欢迎继续关注!