58. Length of Last Word.go

简单求解

func lengthOfLastWord(s string) int {
    arr := strings.Split(strings.Trim(s, " "), " ")
    length := len(arr)
    res := 0
    for i := length - 1; i >= 0; i-- {
        if arr[i] == " " {
            continue
        } else {
            res = len(arr[i])
            break
        }
    }
    return res
}