Golang笔记

channel

func main() {
    m := make(chan int64, 10)
    fmt.Println(len(m), cap(m))
}

func main() {
    var wg sync.WaitGroup
    for i := 0; i < 10; i++ {
        wg.Add(1)

        go func() {
            fmt.Println("Hello world")
            wg.Done()
        }()
    }
    wg.Wait()
}


func test3() {
    _ = make(map[chan interface{}]interface{})
}