在Go中将英尺和英寸转换为厘米？

Question

I am new to Go and I am a bit stuck on a problem regarding human height conversion from feet/inches to cm.

How can I convert, in an efficient way, a string that looks like this 5'2'' to an centimeter int?

Edit: After some more testing I ended up with this solution. How can it be improved?

height := strings.Split("5'2''", "'")
heightfeet,err :=strconv.ParseFloat(height[0],10)
heightinch,err :=strconv.ParseFloat(height[1],10)
heightcm :=heightfeet*30.48+heightinch*2.54

Answer 1

I feel like your approach is fine, but, if you actually want to be sure to extract only the integers and using constants take a look at this Go Playground I set up.

package main

import (
    "fmt"
    "regexp"
    "strconv"
)

func main() {

    //Defining our constants     
    const cm1 = 30.48       
    const cm2 =  2.54 

    //Slice to contain parsed ints
    var parsedTokens []float64

    feet := "5'2''"

    //Regex to extract only integers
    reg := regexp.MustCompile("[0-9]+")
    filtered:= reg.FindAllString(feet, -1)

    //Parse each value v in filtered and append it into parsedTokens
    for _, v := range filtered {
        k, _ := strconv.ParseFloat(v, 64)
        parsedTokens = append(parsedTokens, k)
    }

    //157.48000000000002
    fmt.Println(parsedTokens[0]*cm1 + parsedTokens[1]*cm2)
}