23 lines
720 B
Go
23 lines
720 B
Go
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package main
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import (
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"flag"
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"fmt"
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"time"
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)
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// flag获取命令行参数
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func main() {
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//创建一个标志位参数
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name := flag.String("name", "wangao", "define name")
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age := flag.Int("age", 9000, "define age")
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married := flag.Bool("married", false, "define married")
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mTime := flag.Duration("mtime", time.Second, "define mTime") //命令行接受的参数需要带单位，例如1000h:main.exe -mtime 1000h
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//使用flag
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flag.Parse()
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fmt.Println(*name, *age, *married, mTime)
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fmt.Println(flag.Args()) //返回命令行参数后的其他参数，以[]string类型返回
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fmt.Println(flag.NArg()) // 返回命令行的其他参数个数
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fmt.Println(flag.NFlag()) //返回使用的命令行参数个数
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}
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