数字解析

https://gobyexample-cn.github.io/number-parsing

package main

import (
    "fmt"
    "strconv"
)

func main() {

    f, _ := strconv.ParseFloat("1.234", 64)
    fmt.Println(f)

    i, _ := strconv.ParseInt("123", 0, 64)
    fmt.Println(i)

    d, _ := strconv.ParseInt("0x1c8", 0, 64)
    fmt.Println(d)

    u, _ := strconv.ParseUint("789", 0, 64)
    fmt.Println(u)

    k, _ := strconv.Atoi("135")
    fmt.Println(k)

    _, e := strconv.Atoi("wat")
    fmt.Println(e)
}