Exemplo n.º 1
0
func main() {
	args := os.Args[1:]
	opt := args[0]
	switch opt {
	case "add":
		r1, err1 := strconv.Atoi(args[1])
		r2, err2 := strconv.Atoi(args[2])
		if err1 != nil || err2 != nil {
			fmt.Println("add strconv error", r1, r2)
		}
		res := simplemath.Add(r1, r2)
		fmt.Println(res)
		/*
		   case "sqrt" :
		       r1, err1 := strconv.Atoi(arg[1])
		       if(err1 != nil){
		           fmt.Println("sqrt strconv err", err1)
		       }
		       res := simplemath.sqrt(r1)
		       fmt.Println(res)
		*/
	default:
		Usage()

	}
}
Exemplo n.º 2
0
func main() {
	args := os.Args
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	fmt.Println(len(args))
	fmt.Println(args[0])
	fmt.Println(args[1])
	fmt.Println(args[2])

	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("USAGE: calc add <int1> <int2>")
			return
		}
		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE: calc add <int1> <int2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	default:
		fmt.Println("Unknown command")
	}
}
Exemplo n.º 3
0
func main() {
	args := os.Args
	if args == nil || len(args) < 2 {
		Usge()
		return
	}
	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("USAGE1:calc add <integer1><integer2>")
		}
		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE2:calc add <integer1><integer2>", err1)
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result1:", ret)
	case "sqrt":
		if len(args) != 3 {
			fmt.Println("USAGE3:calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[2])
		if err != nil {
			fmt.Println("USAGE4:calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result2:", ret)
	default:
		Usge()
	}
}
Exemplo n.º 4
0
func main() {
	he := &oop.Person{"hezuoxiang", 10}
	he.Say("f**k")

	var a oop.Integer = 1
	var b oop.Number = &a
	fmt.Println("Result: ", b.Less(2))
	fmt.Println("Result: ", simplemath.Add(3, 4))
}
Exemplo n.º 5
0
func main() {
	var args = os.Args
	if nil == args || len(args) <= 2 {
		fmt.Println("Arguments to less!")
		Usage()
		os.Exit(0)
	}

	switch args[1] {
	case "add":
		if 4 != len(args) {
			fmt.Println("USAGE: calc add integer integer")
			Usage()
			os.Exit(0)
		}

		a, err1 := strconv.Atoi(args[2])
		b, err2 := strconv.Atoi(args[3])
		if nil != err1 || nil != err2 {
			fmt.Println("Can not convert string to integer!")
			Usage()
			os.Exit(0)
		}

		ret := simplemath.Add(a, b)
		fmt.Println(a, "+", b, " = ", ret)
	case "sqrt":
		if 3 != len(args) {
			fmt.Println("USAGE: calc sqrt integer")
			Usage()
			os.Exit(0)
		}

		a, err := strconv.Atoi(args[2])
		if nil != err {
			fmt.Println("Can not convert string to integer!")
			Usage()
			os.Exit(0)
		}

		ret, err := simplemath.Sqrt(a)
		if nil != err {
			fmt.Println("Can not use ", a, " in sqrt function!")
			Usage()
			os.Exit(0)
		}

		fmt.Println("Sqrt(", a, ") = ", ret)
	default:
		Usage()
	}
}
func main() {

	args := os.Args
	if args == nil || len(args) < 2 {

		Usage()
		return
	}

	switch args[0] {

	case "add":
		if len(args) != 3 {
			showAddUsage()
			return
		}
		//strconv.Atoi: change str into integer
		v1, err1 := strconv.Atoi(args[1])
		v2, err2 := strconv.Atoi(args[2])

		if err1 != nil || err2 != nil {
			showAddUsage()
			return
		}
		ret := simplemath.Add(v1, v2)

		fmt.Println("Result: ", ret)

	case "sqrt":
		if len(args) != 2 {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[1])
		if err != nil {
			showSqrtUsage()
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result: ", ret)

	default:
		Usage()
	}

}
Exemplo n.º 7
0
func main() {
	args := os.Args[1:]
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	//fmt.Println("args 0 is:", args[0], args[1], args[2])
	//fmt.Println("length is:", len(args))
	/*for i,v := range args {
	  	fmt.Println(i," ", v)
	  }
	*/
	switch args[0] {
	case "add":
		if len(args) != 3 {
			fmt.Println("USAGE1: calc add <integer1><integer2>")
			return
		}
		v1, err1 := strconv.Atoi(args[1])
		v2, err2 := strconv.Atoi(args[2])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE2: calc add <integer1><integer2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		if len(args) != 2 {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[1])
		if err != nil {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result: ", ret)
	default:
		Usage()
		fmt.Println("why me")
	}
}
Exemplo n.º 8
0
Arquivo: calc.go Projeto: yumm007/Go
func main() {
	args := os.Args
	if args == nil || len(args) < 3 {
		Usage()
		return
	}

	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("Usage: cale add <integer1> <integer2>")
			return
		}

		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("Usage: cale add <integer1> <integer2>")
			return
		}

		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		if len(args) != 3 {
			fmt.Println("Usage: calc sqrt <integer>")
			return
		}

		v, err := strconv.Atoi(args[2])
		if err != nil {
			fmt.Println("Usage: calc sqrt <integer>")
			return
		}

		ret := simplemath.Sqrt(v)
		fmt.Println("Result: ", ret)
	default:
		fmt.Println("unknown command ", args[1])
		Usage()
	}
}
Exemplo n.º 9
0
func main() {
	args := os.Args
	switch args[0] {
	case "add":
		if len(args) != 3 {
			fmt.Println("USAGE: calc add <integer1><integer2>")
			return
		}
		v1, err1 := strconv.Atoi(args[1])
		v2, err2 := strconv.Atoi(args[2])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE: calc add <integer1><integer2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		fmt.Println("sqrt")
	}
}
Exemplo n.º 10
0
func main() {
	args := os.Args
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	fmt.Println("%s\n", args)

	switch args[1] {
	case "add":
		if len(args) != 4 {
			ErrAdd()
			return
		}
		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])

		if err1 != nil || err2 != nil {
			ErrAdd()
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("result: %d ", ret)
	case "sqrt":
		if len(args) != 3 {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[2])

		if err != nil {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result: %d ", ret)
	default:
		Usage()
	}
}
Exemplo n.º 11
0
func main() {
	args := os.Args
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	switch args[1] {
	case "add":
		arg1, err1 := strconv.Atoi(args[2])
		arg2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("err")
			return
		}
		ret := simplemath.Add(arg1, arg2)
		fmt.Println("Return ", ret)
	case "sqrt":
	default:
		Usage()
	}
}
Exemplo n.º 12
0
func main() {
	for i, v := range os.Args {
		fmt.Printf("%d:\t%s\n", i, v)
	}
	args := os.Args[1:]
	if args == nil || len(args) < 2 {
		Usage()
		return
	}
	switch args[0] {
	case "add":
		if len(args) != 3 {
			fmt.Println("Usage calc add <integer><interger2>")
			return
		}
		v1, err1 := strconv.Atoi(args[1])
		v2, err2 := strconv.Atoi(args[2])
		if err1 != nil || err2 != nil {
			fmt.Println("Usage calc add <integer><interger2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		if len(args) != 2 {
			fmt.Println("Usage calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[1])
		if err != nil {
			fmt.Println("Usage calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("ResultL: ", ret)
	default:
		Usage()
	}
}
Exemplo n.º 13
0
func main() {
	args := os.Args
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("USAGE: calc add <integer1><integer2>")
			return
		}
		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE: calc add <integer1><integer2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		if len(args) != 3 {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[2])
		if err != nil {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result: ", ret)
	default:
		Usage()
		//fmt.Printf("len(args): %d, args[0] : %s , args[1]: %s, args[2]: %d, args[3]: %d",len(args), args[0], args[1], args[2], args[3])
	}
}
Exemplo n.º 14
0
func main() {
	args := os.Args
	//	fmt.Println(len(args))
	if args == nil || len(args) < 2 {
		Usage()
		return
	}
	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("Usage:add 3 8")
			return
		}

		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE:add 3 4")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result:", ret)
	case "sqrt":
		if len(args) != 3 {
			fmt.Println("sqrt 3-->")
		}
		v, err := strconv.Atoi(args[2])
		if err != nil {
			fmt.Println("这样输入:sqrt 3.")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println(ret)
	default:
		fmt.Println("default")
	}

}
Exemplo n.º 15
0
func main() {
	flag.Parse()
	args := flag.Args()
	if args == nil || len(args) < 2 {
		Usage()
		return
	}

	switch args[0] {
	case "add":
		if len(args) != 3 {
			fmt.Println("USAGE: calc add <integer1> <integer2>")
			return
		}
		v1, err1 := strconv.Atoi(args[1])
		v2, err2 := strconv.Atoi(args[2])
		if err1 != nil || err2 != nil {
			fmt.Println("USAGE: calc add <integer1> <integer2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	case "sqrt":
		if len(args) != 2 {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		v, err := strconv.Atoi(args[1])
		if err != nil {
			fmt.Println("USAGE: calc sqrt <integer>")
			return
		}
		ret := simplemath.Sqrt(v)
		fmt.Println("Result: ", ret)
	default:
		Usage()
	}
}
Exemplo n.º 16
0
func main() {
	args := os.Args
	if len(args) < 2 {
		Usage()
		return
	}
	switch args[1] {
	case "add":
		if len(args) != 4 {
			fmt.Println("Usage: calc add <integer1><integer2>")
			return
		}
		v1, err1 := strconv.Atoi(args[2])
		v2, err2 := strconv.Atoi(args[3])
		if err1 != nil || err2 != nil {
			fmt.Println("Usage: calc add <integer1><integer2>")
			return
		}
		ret := simplemath.Add(v1, v2)
		fmt.Println("Result: ", ret)
	default:
		Usage()
	}
}
Exemplo n.º 17
0
func main() {
	ret := simplemath.Add(1, 2)
	fmt.Println("Result: ", ret)
}
Exemplo n.º 18
0
func main() {
	fmt.Println(simplemath.Add(1, 2))
	fmt.Println("Hello world")
}