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Golang 入参解析

ArgPrase

example

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package main

// Go provides a `flag` package supporting basic
// command-line flag parsing. We'll use this package to
// implement our example command-line program.
import "flag"
import "fmt"

func main() {
wordPtr := flag.String("word", "foo", "a string")
numbPtr := flag.Int("numb", 42, "an int")
boolPtr := flag.Bool("fork", false, "a bool")

var svar string
flag.StringVar(&svar, "svar", "bar", "a string var")

// Once all flags are declared, call `flag.Parse()`
// to execute the command-line parsing.
flag.Parse()

// Here we'll just dump out the parsed options and
// any trailing positional arguments. Note that we
// need to dereference the pointers with e.g. `*wordPtr`
// to get the actual option values.
fmt.Println("word:", *wordPtr)
fmt.Println("numb:", *numbPtr)
fmt.Println("fork:", *boolPtr)
fmt.Println("svar:", svar)
fmt.Println("tail:", flag.Args())
}

grinning all the time

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