main.go：

​x
package main

import (
  "context"
  "fmt"
  "time"
)

func main() {
  ticker := time.NewTicker(time.Second)
  chanInterface := make(chan interface{}, 100)

  go func() {
    ctx := context.Background()
    ctx, cancelFunc := context.WithTimeout(ctx, 5*time.Second)
    defer cancelFunc()

    for range ticker.C {
      select {
      // 写入一个整数
      case chanInterface <- 1:
        // 写入一个字符串
      case chanInterface <- "string":
        // 写一个布尔值
      case chanInterface <- true:
        // 如果到达超时，那么关闭 Channel
      case <-ctx.Done():
        fmt.Printf("Done")
        close(chanInterface)
      }
    }
  }()

  for v := range chanInterface {
    switch v.(type) {
    case int:
      fmt.Printf("got integer %v\n", v.(int))
    case string:
      fmt.Printf("got string %v\n", v.(string))
    case bool:
      fmt.Printf("got bool %v\n", v.(bool))
    }
  }

  ticker.Stop()
}

运行若干次，观察输出。