constants _ golang

golang 中支持长量 const or static

package main

import (
    "fmt"
    "math"
)

const s string = "constant"
const a = 3000

func main() {
    const s = 3000
    fmt.Println(s)

    const n = (3e8 / s)
    fmt.Println(n)
    fmt.Println(int64(n))

    fmt.Println(math.Sin(n))
}

3000
100000
100000
0.03574879797201651

总结 :

　　1 : const 常量，"const n = 3000" 这样写是ok的,但是 "n = 3000" 或 "const n := 3000" 是错误的

　　2 : const 常量, 常量好像只能和常量进行操作

时间： 2024-10-18 13:41:20

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