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This article mainly explains "such as worsening the use of command-line parameters to find the mean". The explanation in the article is simple and clear, and is easy to learn and understand. let's study and learn "such as worsening the use of command-line parameters to find the average"!

Package mainimport ("fmt"log"os"strconv") func average (numbers... float64) float64 {var sum float64 = 0 for _, number: = range numbers {sum + = number} return sum / float64 (len (numbers))} func main () {arguments: = os.Args [1:] var numbers [] float64 for _ Argument: = range arguments {number, err: = strconv.ParseFloat (argument, 64) if err! = nil {log.Fatal (err)} numbers = append (numbers, number)} fmt.Printf ("Average value is% 0.2f", average (numbers...))}

[root@VM-centos ~ / average] #. / main 100 200 300

Average value is 200.00

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