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| package main
import (
"flag"
"fmt"
"time"
)
func cmdFlag() {
var (
name string
age int
married bool
delay time.Duration
)
flag.StringVar(&name, "name", "张大仙", "姓名")
flag.IntVar(&age, "age", 20, "年龄")
flag.BoolVar(&married, "married", false, "婚否")
flag.DurationVar(&delay, "delay", 0, "时间间隔")
flag.Parse()
fmt.Printf("额外使用了%d个命令行外参数\n", flag.NArg())
fmt.Printf("使用了%d个命令行参数\n", flag.NFlag())
fmt.Println(name, age, married, delay, flag.Args())
}
func main() {
cmdFlag()
}
|