Go语言为基本常数和数学函数提供了内置支持,以借助数学包对数字进行运算。该程序包提供了Float64frombits()函数,该函数返回与IEEE 754二进制表示形式a对应的浮点数,其中a的符号位和结果位于相同的位位置。因此,您需要借助import关键字在程序中添加数学包,以访问Float64frombits()函数。
用法:
func Float64frombits(a uint64) float64
范例1:
// Golang program to illustrate how to find
// the floating-point number corresponding
// to the IEEE 754 binary representation
package main
import (
"fmt"
"math"
)
// Main function
func main() {
// Finding floating-point number corresponding
// to the IEEE 754 binary representation
// of the given numbers
// Using Float64frombits() function
res_1:= math.Float64frombits(2)
res_2:= math.Float64frombits(1)
res_3:= math.Float64frombits(0)
res_4:= math.Float64frombits(23)
// Displaying the result
fmt.Println("Result 1:", res_1)
fmt.Println("Result 2:", res_2)
fmt.Println("Result 3:", res_3)
fmt.Println("Result 4:", res_4)
}
输出:
Result 1: 1e-323 Result 2: 5e-324 Result 3: 0 Result 4: 1.14e-322
范例2:
// Golang program to illustrate how to find
// the floating-point number corresponding
// to the IEEE 754 binary representation
package main
import (
"fmt"
"math"
)
// Main function
func main() {
// Finding floating-point number corresponding
// to the IEEE 754 binary representation
// of the given numbers
// Using Float64frombits() function
nvalue_1:= math.Float64frombits(3)
nvalue_2:= math.Float64frombits(50)
// Sum of the given values
res:= nvalue_1 + nvalue_2
fmt.Println("Result 1:", nvalue_1)
fmt.Println("Result 2:", nvalue_2)
fmt.Println("Sum of Result 1 and Result 2:", res)
}
输出:
Result 1: 1.5e-323 Result 2: 2.47e-322 Sum of Result 1 and Result 2: 2.6e-322
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注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 math.Float64frombits() Function in Golang With Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。