本章节仅介绍一些常用方法，完整的错误方法请参考接口文档： https://pkg.go.dev/github.com/gogf/gf/v2/errors/gerror

New/Newf

• 说明：用于创建一个自定义错误信息的 error 对象，并包含堆栈信息。

• 格式：

  // New creates and returns an error which is formatted from given text.
  New(text string) error
  
  // Newf returns an error that formats as the given format and args.
  Newf(format string, args ...interface{}) error

Wrap/Wrapf

• 说明：用于包裹其他错误 error 对象，构造成多级的错误信息，包含堆栈信息。

• 格式：

  // Wrap wraps error with text. It returns nil if given err is nil.
  // Note that it does not lose the error code of wrapped error, as it inherits the error code from it.
  func Wrap(err error, text string) error
  
  // Wrapf returns an error annotating err with a stack trace at the point Wrapf is called, and the format specifier.
  // It returns nil if given `err` is nil.
  // Note that it does not lose the error code of wrapped error, as it inherits the error code from it.
  func Wrapf(err error, format string, args ...interface{}) error

NewSkip/NewSkipf

• 说明：用于创建一个自定义错误信息的 error 对象，并且忽略部分堆栈信息（按照当前调用方法位置往上忽略）。高级功能，一般开发者很少用得到。

• 格式：

  // NewSkip creates and returns an error which is formatted from given text.
  // The parameter `skip` specifies the stack callers skipped amount.
  func NewSkip(skip int, text string) error
  
  // NewSkipf returns an error that formats as the given format and args.
  // The parameter `skip` specifies the stack callers skipped amount.
  func NewSkipf(skip int, format string, args ...interface{}) error

WrapSkip/WrapSkipf

• 说明：类似于Warp/Wrapf方法，但会忽略部分堆栈信息。

• 格式：

  // WrapSkip wraps error with text. It returns nil if given err is nil.
  // The parameter `skip` specifies the stack callers skipped amount.
  // Note that it does not lose the error code of wrapped error, as it inherits the error code from it.
  func WrapSkip(skip int, err error, text string) error 
  
  // WrapSkipf wraps error with text that is formatted with given format and args. It returns nil if given err is nil.
  // The parameter `skip` specifies the stack callers skipped amount.
  // Note that it does not lose the error code of wrapped error, as it inherits the error code from it.
  func WrapSkipf(skip int, err error, format string, args ...interface{}) error