Golang 绝对值 函数

func Abs(x float64) float64

package main

import (
    "fmt"
    "math"
)

func main() {
    x := 10.5
    result := math.Abs(x)
    fmt.Printf("The absolute value of %f is %f\n", x, result)
}

The absolute value of 10.500000 is 10.500000

package main

import (
    "fmt"
    "math"
)

func main() {
    x := -15.7
    result := math.Abs(x)
    fmt.Printf("The absolute value of %f is %f\n", x, result)
}

The absolute value of -15.700000 is 15.700000

package main

import (
    "fmt"
    "math"
)

func main() {
    x := 0.0
    result := math.Abs(x)
    fmt.Printf("The absolute value of %f is %f\n", x, result)
}

The absolute value of 0.000000 is 0.000000