package main
import (
"flag"
"fmt"
)
func main() {
var (
nameFlag = flag.String("name", "Sam", "Name of the person to say hello to")
quietFlag = flag.Bool("quiet", false, "Toggle to be quiet when saying hello")
)
flag.Parse()
if !*quietFlag {
fmt.Printf("Hello, %s! Welcome to the command line.\n", *nameFlag)
}
}
zzh@ZZHPC:/zdata/Github/ztest$ go run main.go
Hello, Sam! Welcome to the command line.
zzh@ZZHPC:/zdata/Github/ztest$ go run main.go --name=Cassie
Hello, Cassie! Welcome to the command line.
zzh@ZZHPC:/zdata/Github/ztest$ go run main.go --name=Cassie --quiet=true
zzh@ZZHPC:/zdata/Github/ztest$ go run main.go --help
Usage of /tmp/go-build3614526501/b001/exe/main:
-name string
Name of the person to say hello to (default "Sam")
-quiet
Toggle to be quiet when saying hello
标签：ZZHPC,quiet,go,flag,zzh,Go,main From： https://www.cnblogs.com/zhangzhihui/p/18239939