## 獲取單個分類
```
app('rpc.course')->call('apps.category.get',[$id = 1]);
```
~~~[api]
post:demo.getlist
id=1
<<<
Array
{
"jsonrpc":"2.0",
"result":{
????????"id":1,
????????"grade":0,
????????"cid":1,
????????"title":"互動新繪本",
????????"intro":"培養閱讀習慣，提升表達能力",
????????"vurl":"",
????????"onpic":"image/2018/08/14/152008\_5b7282a8436f6.jpg",
????????"icon":"",
????????"isaddr":0,
????????"ispower":0,
????????"type":2,
????????"state":0,
????????"sort":3,
????????"utime":"1547606918",
????????"ctime":"1530868921"
????},
"id":"a7e9ce8948103002385e0455e71981c9"
}
<<<
error
Array
(
[error] => Array
(
[code] => -32602
[message] => Invalid params
[data] =>
)
)
~~~
