Kamas' Manual

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Syntax ​

Log ​

Echo variable of any type in console:

go
fmt.Printf("data: %v", name)
log.Printf("data: %v", name) // timestamp + fmt.Printf

slog.Info("brief message",
  slog.String("name", name),
  slog.Int("age", age),
  slog.Any("data: ", name),
)

Comments ​

go
// Single Line

/*
  Multiple Line(s)
*/

Package ​

For entry file, the package name must be 'main', and one (only one) main function must exist.

go
package main

import "fmt"

func main (){
  fmt.Println("Hello world!")
}

Command Line ​

os.Args() ​

Get cli arguments:

go
package main
import "fmt"
import "os"
func main(){
  // Retrieve and echo all arguments
  for i, arg := range os.Args {
    fmt.Pringf("参数%d = %s\n", i, arg)
  }
}

Run with:

go
go run main.go arg1 arg2 arg3

os.Flag() ​

go
package main
import "flag"
import "fmt"

func main (){
  var stringVal = flag.String("stringVal","","a argument of string type")
  flag.Parse()
  fmt.Println("-stringVal: ", *stringVal)
}

Run with:

bash
go run main.go -stringVal="argument content"