Go语言初识

1、安装：

下载：https://www.golangtc.com/download，例如Ubuntu64位，就下载go1.9.2.linux-amd64.tar.gz

解压之后，将go/bin添加到PATH

2、hello word

创建源代码文件hello-word.go，写入

package main
import "fmt"

func main(){
	fmt.Println("this is fuck hello word!")
}

然后运行go run hello-word.go即可看到运行结果。

也可以运行go build hello-word.go得到名为hello-word的二进制文件，执行./hello-word也可以看到运行结果

3、编写Makefile

hello: hello-word.go
	@echo "fuck you"
	/home/thinking/Documents/go/bin/go build hello-word.go

4、解决go can't load package: package github.com

用go get，或者go install

具体参考http://wiki.jikexueyuan.com/project/go-command-tutorial/0.3.html

例如，你得到了如下错误

can't load package: package github.com/hyperledger/fabric/core/chaincode/shim: cannot find package "github.com/hyperledger/fabric/core/chaincode/shim" in any of:
	/home/yong/Downloads/go/src/github.com/hyperledger/fabric/core/chaincode/shim (from $GOROOT)
	/home/yong/Downloads/go/bin/src/github.com/hyperledger/fabric/core/chaincode/shim (from $GOPATH)
find: ‘/home/yong/Downloads/go/bin/src/github.com/hyperledger/fabric/core/chaincode/shim’: No such file or directory

配置好$GOPATH和$GOROOT两个环境变量

然后在任意位置执行

go get github.com/hyperledger/fabric/tree/release-1.1/core/chaincode/shim

等待一段时间你就会在$GOPATH或$GOROOT下找到所需要的库