book/advanced-go-programming-book
1
0
Fork 0
mirror of https://github.com/chai2010/advanced-go-programming-book.git synced 2025-05-24 04:22:22 +00:00
Code Issues Releases Wiki Activity

Merge pull request #508 from cmatrixprobe/master

Browse Source 
ch1-06:修改拼写错误
This commit is contained in:
chai2010 2020-04-30 09:52:55 +08:00 committed by GitHub
commit d6b085a92c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ch1-basic/ch1-06-goroutine.md
View File

@ -587,14 +587,14 @@ func main() {
我们通过`close`来关闭`cancel`管道向多个Goroutine广播退出的指令。不过这个程序依然不够稳健：当每个Goroutine收到退出指令退出时一般会进行一定的清理工作，但是退出的清理工作并不能保证被完成，因为`main`线程并没有等待各个工作Goroutine退出工作完成的机制。我们可以结合`sync.WaitGroup`来改进: 我们通过`close`来关闭`cancel`管道向多个Goroutine广播退出的指令。不过这个程序依然不够稳健：当每个Goroutine收到退出指令退出时一般会进行一定的清理工作，但是退出的清理工作并不能保证被完成，因为`main`线程并没有等待各个工作Goroutine退出工作完成的机制。我们可以结合`sync.WaitGroup`来改进:
```go ```go
func worker(wg *sync.WaitGroup, cannel chan bool) { func worker(wg *sync.WaitGroup, cancel chan bool) {
defer wg.Done() defer wg.Done()
for { for {
select { select {
default: default:
fmt.Println("hello") fmt.Println("hello")
case <-cannel: case <-cancel:
return return
} }
} }