> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xray.cool/llms.txt
> Use this file to discover all available pages before exploring further.
# versionIn
> `versionIn`函数主要是用来比较所给出的版本字符串是否在给出的版本范围之内
> 版本格式具体可以参考[semver](https://semver.org/)
## 函数原型
`func versionIn(string, string) bool`
### 参数介绍
| 参数名称 | 参数介绍 |
| ---- | ------------ |
| s1 | 需要进行比较的版本字符串 |
| s2 | 需要进行判断的版本范围 |
## 举例
| 待转换数据 | 转换语句 | 输出结果 |
| --------------- | ----------------------------------------------------------- | ------- |
| `1.8.1` | `versionIn("1.8.1", ">= 1.0, <1.8.2")` | `true` |
| `1.8.1` | `versionIn("1.8.1", "> 1.8.1, < 1.8.2")` | `false` |
| `1.8.1-alpha.1` | `versionIn("1.8.1-alpha.1", "> 1.8.1-alpha, < 1.8.1-beta")` | `true` |
| `1.08.33` | `versionIn("1.08.33", "> 1.07.4532, < 1.09.001")` | `true` |
| `1.08.33` | `versionIn("1.08.33", "= 1.008.033")` | `true` |
* **Response**
```HTTP theme={null}
HTTP/1.1 200 OK
Server: nginx
Date: Sat, 07 Jan 2023 10:41:06 GMT
Content-Type: text/html; charset=utf-8
Connection: close
Vary: Accept-Encoding
Cache-Control: no-cache
Content-Length: 85
123
1.8.1
```
* 匹配语句：`versionIn("(?P\\d\\.\\d\\.\\d\\.)".submatch(response.body_string)["version"], ">= 1.0, <1.8.2")`
* 输出结果：`true`