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Module |__package |__package

Go Modules

golang.org

新项目初始化Module

$ go mod init example.com/hello

// 使用测试或者build的方式，会自动加载依赖的Module
$ go test
$ go build ./...

//查看，依赖点 Modules
$ cat go.mod

$ go list -m all

更新依赖

// get the latest version of rsc.io/sampler
$ go get rsc.io/sampler

// list the available tagged versions of sampler
$ go list -m -versions rsc.io/sampler
rsc.io/sampler v1.0.0 v1.2.0 v1.2.1 v1.3.0 v1.3.1 v1.99.99

// get the specific version of sampler
$ go get rsc.io/sampler@v1.3.1

go build/install

$go env -w GOBIN=/path/to/your/bin
$go build
$go install
$go list -f ''

使用本地项目替换远程module

go mod edit -replace example.com/greetings=../greetings

• 这串数字代表什么？ require example.com/greetings v0.0.0-00010101000000-000000000000

The number following the module path is a pseudo-version number – a generated number used in place of a semantic version number (which the module doesn’t have yet).

移除不使用的

$go mod tidy

go mod 还可以直接把依赖的包，复制到vendor中

$go mod vendor

让vs code 识别到vendor目录

在vscode的setting中加入配置

{
    "go.toolsEnvVars": {
        "GOFLAGS": "-mod=vendor"
    }
}

language

struct & interface

• 用户自定义类型
• 方法
• 内置类型 & 引用类型
• 接口
• 嵌入类型(内部类型属性提升到外部类型)
• public & private
• 函数及方法
• 接口要小

Pointers & Values parameters

goroutine

golang使用逻辑的处理器概念。

array & slice

• array
• slice

map

• 非线程安全
• syn.Map

channel

• channel

   ch := make(chan int)

• buffered channel

   ch := make(chan int, 2)

• 用channel并发编程，和内存共享的差异

sync.Mutex & sync.Cond

pool

system modules

testing framework

• Unit Test
• Benchmark Test

协程与锁

• on the train

• 泛型
• generative code
• map(hash table)

error

casbin

trace

• opentracing
• opentelemetry

• opencensus

• trace id format
• zipkin/jaeger
• skywalking
• opentelemetry agent & sdk

• oltp

• GitOps
• IaC

• Oam

• CI/CD tools
• jenkins
• certs
• x509

• openssl

• TLS Handshake
• ssl

• resource allocation

• Recommending
• GC
• Automated planning and scheduling
• writing techniques

• Zero Trust : Never Trust, always verify

• football
• pursue a differnent career path
• find docker images which are suitable for initialization
• infinitive
• gerund
• name/first name=given name/last name=family name
• By the time I’m retired, …
• By the time of the year, I …
• Pagoda cave
• train
• missing way
• perspective

• semi-final

• power distance
• We are the champion

• WAF/L7DDos

• static website tools
• Hugo/Jekyll

• arc42

• pixels

• Mike
• Present Simple
• Present Continuous
• cover letter
• google: A quarter century(25)
• Pay for Double tap?
• pop/push
• volatile-lru
• request/response time
• isolate worker
• web security
• A/AAAA
• DNSSEC
• http code
• animals
• hook
• publicDNS
• DNS over HTTPS
• Moon festival
• Driving: L2++？
• National day
• Best view of North
• start a new journey
• pages & workers
• M2 Pro
• registry
• rotate & rolling-over

• drawing

• Goroutines
• opentelemetry
• TLS