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标题: JSON类解析，不太会用，请教下火山的前辈~ [打印本页]

作者: 无夜 时间: 2021-3-20 15:03
标题: JSON类解析，不太会用，请教下火山的前辈~
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以上JSON**，是群成员列表，需求是：

1,得出 mems 下面的数组数量，在易语言里面zyjson.取成员数("mems")可以知道，但是在火山不知道用什么方法；

2,对应的遍历出所有群成员的 uin 和 nick ；

火山关于json的例子非常少，没有一个很详细的关于官方的那个JSON库的使用例程，

拜托各位大佬指点下~~~

作者: 创世魂 时间: 2021-3-20 22:39
本帖最后由创世魂于 2022-8-10 11:37 编辑

http://doc.voldp.com/vol_Android/JSON/json_duixiang.htm 这个图文教程还不够详细吗？？？
http://doc.voldp.com/vol_Android/JSON/json_shuzu.htm json数组教程。。还是这个解释的不清楚。。

看完这两个教程，绝对可以会解析出来json

作者: 创世魂 时间: 2021-3-20 22:46

火山视窗的json解析方法，很简单的。。

作者: 无夜 时间: 2021-3-20 23:01
还是版主热心，感谢:噜阿噜

作者: 无夜 时间: 2021-3-21 00:07

创世魂发表于 2021-3-20 22:46
火山视窗的json解析方法，很简单的。。

不太对，按照你这写法，计次循环里面 JSON对象.取文本值(“//........” ) 这代码是错误的......

作者: 创世魂 时间: 2021-3-21 13:25

无夜发表于 2021-3-21 00:07
不太对，按照你这写法，计次循环里面 JSON对象.取文本值(“//........” ) 这代码是错误的...... ...

到文本（取循环索引（））这点小问题，自己转换一下就行了。。

作者: 无夜 时间: 2021-3-21 17:40

创世魂发表于 2021-3-21 13:25
到文本（取循环索引（））这点小问题，自己转换一下就行了。。

还有一个小错误，//mems.["....."]......

你的是//mems[“.....”].......

按照这么写，运行了直接闪退了

作者: 1051496412 时间: 2021-5-14 21:21
用 query 也可以实现
参考 JSON对象类的取文本值2 方法
@ @<欲操作本对象>.getString(@<键名>)
你把他那个 getString 改成 query 就行了

这个用法是 query ("#/mems/0/uin") 或者 query ("/mems/0/uin")
然后就可以取出来了

作者: 1051496412 时间: 2021-5-14 21:23
如果不想加异常处理，直接用 optQuery 就可以

欢迎光临递归火山软件开发平台 (https://bbs.voldp.com/)