go开发环境配置

remove golang

sudo apt-get autoremove golang

download golang 1.2.2

wget http://golang.org/dl/go1.2.2.linux-amd64.tar.gz
tar zxf go1.2.2.linux-amd64.tar.gz

mv go /home/work/app/go1.2.2

vim /home/tudou/.bashrc

export GOROOT=/home/work/app/go1.2.2

export PATH=$PATH:$GOROOT/bin

sudo apt-get autoremove vim

sudo apt-get install libncurses5-dev libgnome2-dev libgnomeui-dev libgtk2.0-dev libatk1.0-dev libbonoboui2-dev libcairo2-dev libx11-dev libxpm-dev libxt-dev python-dev ruby-dev mercurial

wget ftp://ftp.vim.org/pub/vim/unix/vim-7.4.tar.bz2
./configure --prefix=/home/work/app/vim74 && sudo make -j 6 VIMRUNTIMEDIR=/home/work/app/vim74/share/vim/vim74 && sudo make install

vim /home/tudou/.bashrc

export PATH=$PATH:/home/work/app/vim74/bin

export GOPATH=/home/go
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOBIN


go get -u github.com/nsf/gocode

sudo mv /home/tudou/.vim/autoload/gocomplete.vim /home/work/app/vim74/share/vim/vim74/autoload
sudo mv /home/tudou/.vim/ftplugin/go /home/work/app/vim74/share/vim/vim74/ftplugin

cd 
/home/work/app/vim74/share/vim/vim74/plugin
wget http://www.vim.org/scripts/download_script.php?src_id=11533

vim /home/tudou/.vimrc

set enc=utf-8
set nobackup
set ignorecase
colo desert
"" 行号
set nu
"" 自动缩进
set autoindent
"" 设置软制表符宽度为4
set tabstop=4
set softtabstop=4
"" 设置缩进的空格书为4
set shiftwidth=4
set backspace=indent,eol,start
set completeopt=longest,menu
set rtp+=$GOROOT/misc/vim
filetype plugin indent on
syntax on
let g:SuperTabRetainCompletionType=2
let g:SuperTabDefaultCompletionType="<C-X><C-O>"

package main
2
3 import (
4     "fmt"
5     "database/sql"
6     _"github.com/go-sql-driver/mysql"
7     "strconv"
8     "math/rand"
9     "time"
10 )
11
12 var(
13     a = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
14     defaultRand = rand.New(rand.NewSource(time.Now().UnixNano()))
15     l=len(a)
16 )
17
18 func ranKey(count uint) string{
19     var result []byte
20     for i:=uint(0); i<count; i++{
21         result = append(result,a[defaultRand.Intn(l)])
22     }
23     result[defaultRand.Intn(5)+(int(count)/2)]=byte(95)
24     return string(result)
25 }
26
27 func main(){
28     fmt.Printf("hell world\n")
29     db,err := sql.Open("mysql", "tudou_w:chuliang@tcp(127.0.0.1:3306)/xm_tudou?charset=utf8")
30     if err != nil {
31         panic(err.Error())
32         fmt.Println(err.Error())
33     }else{
34         fmt.Println("db is open")
35     }
36     defer db.Close()
37
38     rows,err := db.Query("select id,t_name from test_a")
39     if err != nil {
40         panic(err.Error())
41         fmt.Println(err.Error())
42     }else{
43         fmt.Println("rows is open")
44     }
45     defer rows.Close()
46     var id int
47     var tname string
48     for rows.Next(){
49         rerr := rows.Scan(&id,&tname)
50         if rerr == nil{
51             fmt.Println("id:"+strconv.Itoa(id)+"    name:"+tname)
52         }
53     }
54     db.Close()
55
56     fmt.Println(ranKey(32))
57 }