# 查詢系統學校、年級、班級
```
{
"op": "sp_QueryScoolGradeClss",
"params": ["grade",1,1]
}
1）params:[意圖,學校id,年級id]
2) 意圖枚舉: school,grade,class
3) 意圖對參數影響如下
意圖為 school 則 學校id 固定 -1 ,年級id 固定 -1
例 "params": ["school",-1,-1]
意圖為 grade 則 學校id 為schoolIdx, 年級id 固定 -1
例 "params": ["grade",1,-1]
意圖為 class 則 學校id 為schoolIdx 年級id 為classIdx
例 "params": ["class",1,1]
```
```
success
{
"msg": "操作成功",
"rc": 0,
"data": [
{
"name": "2017級",
"id": 1
},
{
"name": "2018",
"id": 2
},
{
"name": "2019",
"id": 3
},
{
"name": "2020",
"id": 4
}
]
}
```
```
error
{
"msg": "",
"rc": 2,
}
```
