Golang error and panic

The art of programing It is often the case that there are many error blocks in the business logic. For example, call the following functions in sequence

func first() error {return nil}
func second() error {return nil}
func third() error {return nil}
func fourth() error {return nil}
func fifth() error {return nil}

How to write to judge ** error ** What? I was dizzy. .. ..

func Do() error {
    var err error
    if err = first(); err == nil {
        if err = second(); err == nil {
            if err = third(); err == nil {
                if err = fourth(); err == nil {
                    if err = fifth(); err == nil {
                        return nil
                    }
                }
            }
        }
    }
    return err
}

There are many flat people in the actual work,

func Do() error {
    var err error
    if err = first(); err != nil {
        return err
    }
    if err = second(); err != nil {
        return err
    }
    if err = third(); err != nil {
        return err
    }
    if err = fourth(); err != nil {
        return err
    }
    if err = fifth(); err != nil {
        return err
    }
    return nil
}

Well, if you use ** panic **,

func Do2() (err error) {
    defer func(){
        if r:= recover() ; r!= nil{
            err = fmt.Errorf("Error: %+v", r)
        }
    }()
    first2()
    second2()
    third2()
    fourth2()
    fifth2()
    return
}