import("container/list""fmt")funcExample(){// Create a new list and put some numbers in it.l := list.New() e4 := l.PushBack(4) e1 := l.PushFront(1) l.InsertBefore(3, e4) l.InsertAfter(2, e1)// Iterate through list and print its contents.fore := l.Front(); e !=nil;...
Typesofprofiles available:Count Profile// 下面是一些可访问的/debug/pprof/目录下的路由2allocs0block0cmdline36goroutine2heap0mutex0profile13threadcreate0trace full goroutine stack dump Profile Descriptions:// 下面是对上面那些路由页面里展示的性能分析数据的解释allocs:Asamplingofall past memory allocations...
AI代码解释 // 如果尚未创建mp信号量,则为其创建一个funcsemacreate(mp*m)// 如果ns<0,则获取m的信号量并返回0// 如果ns>=0,则在ns纳秒内尝试获取m的信号量// 如果获取了信号量返回0 如果中断或超时返回-1funcsemasleep(ns int64)int32//唤醒已经或即将在其信号量上休眠的mpfuncsemawakeup(mp*m) js,...
gaper - Builds and restarts a Go project when it crashes or some watched file changes. gilbert - Build system and task runner for Go projects. gob - Gradle/Maven like build tool for Go projects. goyek - Create build pipelines in Go. mage - Mage is a make/rake-like build tool using ...
生产苹果,吃苹果 factory = &AppleFactory{} apple = factory.CreateFruit() apple.Eat() //创建香蕉工厂,生产香蕉,吃香蕉 factory = &BananaFactory{} banana = factory.CreateFruit() banana.Eat() //创建橘子工厂,生产橘子,吃橘子 factory = &OrangeFactory{} orange = factory.CreateFruit() orange.Eat(...
packagemainimport("fmt""github.com/akamensky/argparse""os")funcmain() {// Create new parser objectparser:=argparse.NewParser("print","Prints provided string to stdout")// Create string flags:=parser.String("s","string",&argparse.Options{Required:true,Help:"String to print"})// Parse in...
(id) +"@test.com", }//v2 support, do some database operations in the transaction (use 'tx' from this point, not 'gosql')tx.Model(user).Create()ifid ==8{returnerrors.New("interrupt the transaction") } }//query with transactionvarnuminterr := tx.QueryRowx("select count(*) from ...
csvFile, err := os.Create(fmt.Sprintf("data/%s.csv", dateTime))iferr !=nil{panic(err) } csvFile.WriteString("\xEF\xBB\xBF") writer = csv.NewWriter(csvFile) writer.Write([]string{"车型","行驶里程","首次上牌","价格","所在地","门店"}) ...
首先创建loop_test.go文件,实现一个制作数组并且赋值初始化内存值的函数CreateSource(),代码如下: package MyGolang import "testing" func CreateSource(len int) []int { nums := make([]int, 0, len) for i := 0 ; i < len; i++ { nums = append(nums, i) } return nums } 其次实现一个...
gospider-task-create.png *: update doc 6年前 gospider-task-list.png *: update doc 6年前 gospider.go *: update doc 6年前 README MIT gospider 当前状态 特性 依赖 使用方式 感谢 License gospider golang实现的爬虫框架,使用者只需关心页面规则,提供web管理界面。基于colly开发。 当...