From 1b137c2ba734a219c7c4e0965059c5d30ae7e57b Mon Sep 17 00:00:00 2001
From: leizihui <leizihui@021.com>
Date: Thu, 9 Apr 2020 18:41:44 +0800
Subject: [PATCH] =?UTF-8?q?go=20=E5=BE=AA=E7=8E=AF=E9=97=AD=E5=8C=85?=
 =?UTF-8?q?=E9=99=B7=E9=98=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 golang/for_trap.go | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 golang/for_trap.go

diff --git a/golang/for_trap.go b/golang/for_trap.go
new file mode 100644
index 0000000..204908e
--- /dev/null
+++ b/golang/for_trap.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	for i := 0; i <= 10; i++ {
+		go func() {
+			fmt.Println(i) //实际闭包中i是地址 匿名函数和中和外边共享的是同一个变量
+		}()
+
+		/*正确方法
+		//方法一
+		finalI := i //复制一个变量副本 (java写法)
+		go func() {
+			fmt.Println(finalI)
+		}()
+
+		//方法二
+		go func(paramI int) { //作为参数传递到匿名函数中(实际也是等同于使用副本)
+			fmt.Println(paramI)
+		}(i)
+
+		*/
+
+	}
+
+	time.Sleep(5 * time.Second)
+}
-- 
Gitee