mirror of
https://github.com/duke-git/lancet.git
synced 2026-03-01 00:35:28 +08:00
dudaodong
58 lines
1021 B
Markdown
58 lines
1021 B
Markdown
# Xerror
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xerror错误处理逻辑封装
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<div STYLE="page-break-after: always;"></div>
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## 源码:
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- [https://github.com/duke-git/lancet/blob/main/xerror/xerror.go](https://github.com/duke-git/lancet/blob/main/xerror/xerror.go)
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<div STYLE="page-break-after: always;"></div>
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## 用法:
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```go
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import (
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"github.com/duke-git/lancet/v2/xerror"
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)
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```
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<div STYLE="page-break-after: always;"></div>
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## 目录
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- [Unwrap](#Unwrap)
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<div STYLE="page-break-after: always;"></div>
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## 文档
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### <span id="Unwrap">Unwrap</span>
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<p>如果err为nil则展开，则它返回一个有效值。 如果err不是nil则Unwrap使用err发生恐慌。</p>
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<b>函数签名:</b>
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```go
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func Unwrap[T any](val T, err error) T
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```
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<b>例子:</b>
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```go
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package main
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import (
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"fmt"
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"github.com/duke-git/lancet/v2/xerror"
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)
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func main() {
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_, err := strconv.Atoi("4o2")
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defer func() {
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v := recover()
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fmt.Println(err.Error()) // err.Error() == v.(*strconv.NumError).Error()
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}()
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xerror.Unwrap(strconv.Atoi("4o2"))
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}
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```
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