// Package declarationpackagemain// Importing packagesimport("fmt""time""math""math/rand")funcmain(){// Finding the Max of two numbersfmt.Println(math.Max(73.15,92.46))// Calculate the square root of a numberfmt
Create a module -- Write a small module with functions you can call from another module. 创建一个模块——编写一个小模块,里面含有你可以在其它模块中调用的函数。 Call your code from another module-- Import and use your new module. 在其它模块中调用你的代码——导入并使用你的新模块。 Return an...
error 的困局 In Go, error handling is important. The language's design and conventions encourage you to explicitly check for errors where they occur (as distinct from the convention in other languages of throwing exceptions and sometimes catching them). 在Go 语言中,错误处理是非常重要的。它从语言...
Here is basic example of print command (from examples/print/ directory):package main import ( "fmt" "github.com/akamensky/argparse" "os" ) func main() { // Create new parser object parser := argparse.NewParser("print", "Prints provided string to stdout") // Create string flag s :...
The first library exemplifies a minimal package import. It merely gives the fully qualified import path. When Glide reads the definition for the second library, it will get the repo from the source inrepo, checkout the latest version between 1.2.0 and 2.0.0, and put it ingithub.com/Master...
package main import ( "testing" "time" ) func TestHumanDate(t *testing.T) { // Create a slice of anonymous structs containing the test case name, // input to our humanDate() function (the tm field), and expected output // (the want field). tests := []struct { name string tm ...
Viper 是适用于 Go 应用程序(包括 Twelve-Factor App)的完整配置解决方案。它被设计为在应用程序中工作,并且可以处理所有类型的配置需求和格式。它支持: 设置默认值 可以读取JSON,TOML,YAML,HCL,envfile 和Javaproperties 格式的配置文件 实时监控和重新读取配置文件(可选) ...
subcmd - Another approach to parsing and running subcommands. Works alongside the standard flag package. teris-io/cli - Simple and complete API for building command line interfaces in Go. ts - Timestamp convert & compare tool. ukautz/clif - Small command line interface framework. urfave/cli ...
The client depends on Google'sproxypackage and thewebsocketspackage, also easily installed with the commands: go get github.com/gorilla/websocket go get golang.org/x/net/proxy Usage and API Detailed API documentation is available by using to godoc tool, or can be browsed online using thepkg...
package modfile 21 22 import ( 23 "errors" 24 "fmt" 25 "path/filepath" 26 "sort" 27 "strconv" 28 "strings" 29 "unicode" 30 31 "golang.org/x/mod/internal/lazyregexp" 32 "golang.org/x/mod/module" ...