如何在func中修改全局结构值

Question

When I use it to iterate over a structure, the memory addresses are different. So I can't modify its value

none

type SiteUrl struct {
    name string
    url  string
    isUp bool
}

func debug(s *SiteUrl) {
    s.isUp = false
}

func main() {

    sites := []SiteUrl{
        {"test site", "http://127.0.0.1:8000", true},
    }
    for {
        for _, site := range sites {

            fmt.Println(&site.isUp, site.isUp)
            debug(&site)
        }
    }


}

It's value not modified

Answer 1

your println func runs before your change action debug().

debug() first, then println it will work