From 31eaa11eee95a6d3ed0e9bc33533510b4b281ed0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8B=AC=E5=AD=A4=E4=BC=B6=E4=BF=9C?= <1184662350@qq.com>
Date: Sat, 7 Jan 2023 21:44:10 +0800
Subject: [PATCH] =?UTF-8?q?day10=E5=8D=8F=E7=A8=8B=20=E6=B2=A1=E6=9C=89?=
 =?UTF-8?q?=E7=BC=93=E5=AD=98=E7=9A=84=20channel?=
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---
 src/study/day10Goroutines/Goroutines.go     |  1 +
 src/study/day10Goroutines/NoCacheChannel.go | 36 +++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 src/study/day10Goroutines/NoCacheChannel.go

diff --git a/src/study/day10Goroutines/Goroutines.go b/src/study/day10Goroutines/Goroutines.go
index 1c6dcce..89f040c 100644
--- a/src/study/day10Goroutines/Goroutines.go
+++ b/src/study/day10Goroutines/Goroutines.go
@@ -21,6 +21,7 @@ func main() {
 	const n = 45
 	fibN := fib(n) // slow
 	fmt.Printf("\rFibonacci(%d) = %d\n", n, fibN)
+	any
 }
 
 func spinner(delay time.Duration) {
diff --git a/src/study/day10Goroutines/NoCacheChannel.go b/src/study/day10Goroutines/NoCacheChannel.go
new file mode 100644
index 0000000..aed8369
--- /dev/null
+++ b/src/study/day10Goroutines/NoCacheChannel.go
@@ -0,0 +1,36 @@
+package main
+
+import (
+	"time"
+)
+
+// 不带缓存的channel
+// 无缓存的channel，发送端发送数据，必须等待接收端接收数据
+// 同样的, 接收数据，也必须等待发送端发送数据
+// 如果有一方发了数据，但是另一方没有接收，那么就会发生阻塞
+// 如果要接收数据,但是没有数据发送,那么也会发生阻塞
+func main() {
+	ch := make(chan int)
+	// 模拟发送数据
+	go func() {
+		// 模拟耗时操作
+		time.Sleep(5 * time.Second)
+		ch <- 1
+		println("发送数据")
+	}()
+
+	// 程序阻塞, 等待接受数据
+	println("接收数据1", <-ch)
+
+	// 模拟接收数据
+	go func() {
+		// 此程序会阻塞, 因为没有数据发送
+		println("接收数据2", <-ch)
+	}()
+	// 模拟耗时
+	time.Sleep(3 * time.Second)
+	ch <- 2
+	// 模拟耗时, 等待所有的goroutine执行完毕
+	time.Sleep(3 * time.Second)
+
+}