Merge pull request #328 from htlhenry/patch-3

go关键字之后的匿名函数需要加上()

eBook/14.2.md

@@ -281,7 +281,7 @@ ch := make(chan int)
 go func(){
 	// doSomething
 	ch <- 1 // Send a signal; value does not matter
-}
+}()
 doSomethingElseForAWhile()
 <- ch	// Wait for goroutine to finish; discard sent value.
 ```