In golang closure func ,the needed outer variable is passed by reference
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but when the variable self is a reference in example.go , the closure func
paras is *[&map[int]int,...] is so ?
and I doubt what kind of datatype the paras in closure func?
// example.go
package main
import "time"
func main() {
m := map[int]int{1: 100, 2: 200}
println(&m, m)
go func() {
time.Sleep(1 * time.Second)
println(m[1])
}()
m = map[int]int{3: 300, 4: 400}
time.Sleep(2 * time.Second)
}
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