YMY_mine的博客

安装包下载地址为：https://golang.org/dl/如果打不开可以使用这个地址：https://golang.google.cn/dl/1、下载tar包wget https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz2、解压文件到 /usr/local如果/usr/local下有go文件，rm -rf/usr/local/go 删干净tar -C /usr/local -zxvf go1.13.5.linux-amd..

go中，除数为0时并不会返回error或者nil，而是返回无穷大---> NAN（正无穷），表明数字太大溢出的情况函数math.IsNaN可以测试一个数值是否是NaN，math.NaN的返回值是一个NaN值。测试一个计算的结果是否等于NaN是很危险的，因为任何值跟NaN比较的结果都是false，比如：package mainimport ( "fmt" "math" "reflect" //"os")func main(){ a:= math.NaN() if a

实现Json Marshal：将数据编码成json字符串看一个简单的例子type Stu struct { Name string `json:"name"` Age int HIgh bool sex string Class *Class `json:"class"`}type Class struct { Name string Grade int}func main() { //实例化一个数据结构

//二分法查找func Find(arr []int,val int)int{ if arr==nil{ return -1 } left:=0 right:=len(arr)-1 pos:=-1 var mid int for left<right{ mid=(right-left+1)/2+left if arr[mid] == val { for l...

一、冒泡排序//冒泡func Bubblesort(arry []int)[]int{ if arry == nil{ return nil } for i:=0;i<len(arry)-1;i++{ for j:=0;j<len(arry)-i-1;j++{ if arry[j]>arry[j+1]{ arry[j],arry[j+1]=ar...

1、逆置//链表逆置type Node struct{ data int next *Node}func Reversenode(list *Node) *Node { if list==nil || list.next==nil || list.next.next==nil{ return nil } p:=list.next list.next=nil var ...

package dingdingimport ( "github.com/royeo/dingrobot" "yangmengyao/dataChecksum/initlog")func SendDingMsg(title string,dict []map[string]string,flag string) { //webhook := "https://oapi.dingt...

go get gopkg.in/yaml.v2生成配置文件：package mainimport ( "bufio" "fmt" "os")func main(){ fd, err := os.OpenFile("./kpid.yaml", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666) if err != nil { p...

package mainimport ( "runtime")func main() { runtime.GOMAXPROCS(3) go task() go task() select{}}func task(){ a := 100 for { a += 1 }}上面代码正常情况下会使cpu使用率达到60%左右，但是如果我们想要是cpu使用率控...

连接mysql库package mainimport ( "fmt" "strings" "database/sql" _"github.com/go-sql-driver/mysql")const ( userName = "***" password = "***" ip = "***" port = "***" dbName =...

一、aiflow触发DAG有两种方式：1、内部触发：也就是通过设置参数schedule_interval 来触发DAG，时间一到，DAG就会执行2、外部传参触发：import requestsimport jsondata={ # "ipaddr":"10.0.6.165", # "user":"postgres", "lucyIp":"10....

package mainimport ( "fmt" "io/ioutil" "log" "os/exec" "syscall")func main() { cmd := exec.Command("/bin/bash", "-c", "ls -l") //不加第一个第二个参数会报错 //cmd.Stdout = os.Stdout // cmd.Stdout...

官方链接：https://open-doc.dingtalk.com/docs/doc.htm?spm=a219a.7629140.0.0.z5MWoh&treeId=257&articleId=105735&docType=1import requestswebhook="机器人的hook"aa={'name':[80,18],'aaa':[2,0],'...

菜鸟教程：http://www.runoob.com/go/go-program-structure.html视频教程：https://search.bilibili.com/all?keyword=golang推荐博客：https://www.flysnow.org/2017/03/04/go-in-action-go-package.html...

package mainimport "fmt"func main() { var a int = 0 fmt.Println("for start") for a = 0; a &lt; 10; a++ { fmt.Println(a) } fmt.Println("for end") fmt.Println(a)}结果：此时 initialize 中(a...

https://blog.youkuaiyun.com/wade3015/article/details/83351776https://cloud.tencent.com/developer/article/1066126https://github.com/widuu/goiniconfigparser:https://www.jianshu.com/p/2f0636e27477

一、全局通道channel的创建:var ch chan int = make(chan int, 4)  无缓冲var ch chan int = make(chan int)，有缓冲二、golang channel 有缓冲 与 无缓冲 是有重要区别的无缓冲的与有缓冲channel有着重大差别：一个是同步的 一个是非同步的比如ch1:=make(chan int)    ...

server端代码：package mainimport ( "fmt" "net" "log" "os")func main() { addr := "0.0.0.0:8787" tcpAddr, err := net.ResolveTCPAddr("tcp",addr) if err != nil { log.Fatalf("net.Res

https://beego.me/docs/mvc/controller/xsrf.md

package mainimport ( "fmt" "time")func main() { nowTime := time.Now() getTime := nowTime.AddDate(0, 0, -1) //年，月，日 获取一天前的时间 resTime := getTime.Format("2006-01-02 15:04:05+0...

1、正则匹配package mainimport ( "fmt" "regexp")func main() { //pattern := "\\d+" //反斜杠要转义 pattern := "[a-zA-Z]" //匹配字母 str := "a1.22.35.4" result, _ := regexp.MatchString(pattern, s...

1、http.NewRequest()package mainimport ( "bytes" "encoding/json" "fmt" "io/ioutil" "net/http" "unsafe")type JsonPostSample struct {}func (this *JsonPostSample) SamplePost() { info := ...

package mainimport ( "fmt" "reflect" "gopkg.in/fatih/set.v0")/*set并集 交集 差集计算示例*/func main() { a := set.New(set.ThreadSafe) c := 8 a.Add(1) a.Add(2) a.Add(3) a.Add(c) b := set.New(s...

golangpackage mainimport _ "github.com/lib/pq"func main() { pgsqlInfo := fmt.Sprintf("host=%s port=%d user=%s "+"password=%s dbname=%s sslmode=disable", host, port, user, password, dbname)...

package mainimport ( "fmt" "strings")func main() { str := "这里是 www\n.runoob\n.com" fmt.Println("-------- 原字符串 ----------") fmt.Println(str) // 去除空格 str = strings.Replace(str, " ", "", -1)...