From 51eceb15fba38a4439bc155608aef55e8c5de316 Mon Sep 17 00:00:00 2001
From: chai2010 <chaishushan@gmail.com>
Date: Fri, 27 Jul 2018 05:42:31 +0800
Subject: [PATCH] =?UTF-8?q?ch2-02:=20=E4=BF=AE=E5=A4=8D=E4=BB=A3=E7=A0=81?=
 =?UTF-8?q?=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ch2-cgo/ch2-02-basic.md | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/ch2-cgo/ch2-02-basic.md b/ch2-cgo/ch2-02-basic.md
index d83e333..6a6f45f 100644
--- a/ch2-cgo/ch2-02-basic.md
+++ b/ch2-cgo/ch2-02-basic.md
@@ -19,7 +19,6 @@ void printint(int v) {
 }
 */
 import "C"
-import "unsafe"
 
 func main() {
     v := 42
@@ -47,7 +46,7 @@ func (p *CChar) GoString() string {
 }
 
 func PrintCString(cs *C.char) {
-    print(cs.GoString())
+    print(((*CChar)(cs.GoString()))
 }
 ```
 
@@ -56,7 +55,7 @@ func PrintCString(cs *C.char) {
 ```go
 package main
 
-// static char* cs = "hello"
+// extern char* cs = "hello"
 import "C"
 import "./cgo_helper"
 
@@ -121,11 +120,11 @@ package main
 #cgo linux CFLAGS: -DCGO_OS_LINUX=1
 
 #if defined(CGO_OS_WINDOWS)
-	static char* os = "windows";
+	extern char* os = "windows";
 #elif defined(CGO_OS_DARWIN)
-	static char* os = "darwin";
+	extern char* os = "darwin";
 #elif defined(CGO_OS_LINUX)
-	static char* os = "linux";
+	extern char* os = "linux";
 #else
 #	error(unknown os)
 #endif