app 折线图
# app 折线图
- **请求URL**
> [{{URL}}/billing/sales_purchase_month](#)
- **请求方式**
>**get**
- **请求参数**
| 请求参数 | 参数类型 | 参数说明 | 是否必填 |
| :-------- | :--------| :------ | :------ |
| type|string| sale --销售 purchase --采购| M|
- **错误码**
```java
500 失败
```
- **返回示例**
>
```java
{
"code": 200,
"message": "",
"data": {
"x": [
"2021-04",
"2021-05",
"2021-06",
"2021-07",
"2021-08",
"2021-09",
"2021-10",
"2021-11",
"2021-12",
"2022-01",
"2022-02",
"2022-03"
],
"y": [
"0.00",
"0.00",
"0.00",
"0.00",
"0.00",
"0.00",
"0.00",
"0.00",
"170262.20",
"87.00",
"0.00",
"20035.00"
]
}
}
```