Go language Structure definition use

Source: Internet
Author: User
This is a created article in which the information may have evolved or changed.
Package Mainimport (    "FMT"    "sync") type info struct {    info map[int]string    mu   sync. Rwmutex}func Main () {    x: = &info{info:make (map[int]string)}    x.set (1, "Golang")    s: = X.get (1)    FMT. Println (s)}func (S *info) Get (i int) string {    s.mu.rlock ()    Info: = S.info[i]    s.mu.runlock ()    return Info}func (S *info) Set (i int, name string) bool {    s.mu.lock ()    defer S.mu.unlock ()    _, Present: = s.info[i]< C17/>if present {        return False    }    s.info[i] = name    return true}

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