Timer的使用 引用（指针）的测试

<!-- lang: cpp -->
package main

import (
"fmt"
"time"
)

func panic_test(){
defer func() {
    fmt.Println("no")
//      if e := recover(); e != nil {
//          fmt.Println("some wrong:", e)
//      }
}()
z := 0
zero := 1/z
fmt.Println(zero)
}
func main() {
panic_test()
go func() {
    for a := range time.Tick(1e9) {
        fmt.Printf("cur conn num: %v\n", a)
    }
}()

list := []string{"a","b","c","d"}
//fmt.Printf("in main, list addr is %p \r\n", list)

go func( list []string) {
    //fmt.Printf("in goruotine, list addr is %p \r\n", list)
    time.Sleep(1e9)
    (list)[2] = "CC"
    list = append(list,"FF")
    for i, c := range list{
        fmt.Println( "in go", i, c)
    }
}(list)

for i, c := range list{
    fmt.Println( i, c)
    time.Sleep(1e9)
}

fmt.Println( "second printf")
for i, c := range list{
    fmt.Println( i, c)
    //time.Sleep(1e9)
}
for{time.Sleep(1e5)}
}