# Trailing Slash (尾部斜杠) 中間件
### 添加尾部斜杠
Add trailing slash 中間件會在在請求的 URI 后加上反斜杠
*用法*
```go
e := echo.New()
e.Pre(middleware.AddTrailingSlash())
```
### 去除尾部斜杠
Remove trailing slash 中間件在請求的 uri 后去除反斜杠
*用法*
```go
e := echo.New()
e.Pre(middleware.RemoveTrailingSlash())
```
### 自定義配置
*用法*
```go
e := echo.New()
e.Use(middleware.AddTrailingSlashWithConfig(middleware.TrailingSlashConfig{
RedirectCode: http.StatusMovedPermanently,
}))
```
這個示例將向請求 URI 添加一個尾部斜杠，并使用 `301 - StatusMovedPermanently` 重定向。
### 配置
```go
TrailingSlashConfig struct {
// Skipper defines a function to skip middleware.
Skipper Skipper
// Status code to be used when redirecting the request.
// Optional, but when provided the request is redirected using this code.
RedirectCode int `json:"redirect_code"`
}
```
*默認配置*
```go
DefaultTrailingSlashConfig = TrailingSlashConfig{
Skipper: defaultSkipper,
}
```
