windows环境go开环境实例

之前都是简单测试，没有按照go建议的开发规范来，以后要正规化。

go的开发环境规范，参见doc/code

中文链接  http://docscn.studygolang.com/doc/code.html

1.下载并安装go

http://www.golangtc.com/download

最新的1.6.2 已经80M了。 1.1才 40M.可见go的成长还是很迅速的。

设置环境变量%GOPATH%

2。下载并安装git客户端

得到一个Git bash.可以在windows下用linux命令。就是很慢。

3.安装godep

// Copyright 2012-2014 The GoSNMP Authors. All rights reserved.  Use of this
// source code is governed by a BSD-style license that can be found in the
// LICENSE file.

package main

import (
	"fmt"
	"log"

	//g "github.com/soniah/gosnmp"
	g "gosnmp"
)

func main() {

	// Default is a pointer to a GoSNMP struct that contains sensible defaults
	// eg port 161, community public, etc
	g.Default.Target = "192.168.6.87"
	err := g.Default.Connect()
	if err != nil {
		log.Fatalf("Connect() err: %v", err)
	}
	defer g.Default.Conn.Close()

	//oids := []string{"1.3.6.1.2.1.1.4.0", "1.3.6.1.2.1.1.7.0"}
	//test ascii
	oids := []string{"1.3.6.1.2.1.2.2.1.6.0"};
	result, err2 := g.Default.Get(oids) // Get() accepts up to g.MAX_OIDS
	if err2 != nil {
		log.Fatalf("Get() err: %v", err2)
	}

	for i, variable := range result.Variables {
		fmt.Printf("%d: oid: %s ", i, variable.Name)

		// the Value of each variable returned by Get() implements
		// interface{}. You could do a type switch...
		switch variable.Type {
		case g.OctetString:
			fmt.Printf("string: %s\n", string(variable.Value.([]byte)))
		default:
			// ... or often you're just interested in numeric values.
			// ToBigInt() will return the Value as a BigInt, for plugging
			// into your calculations.
			fmt.Printf("number: %d\n", g.ToBigInt(variable.Value))
		}
	}
}

5.编译执行

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