对于字符串切片的循环迭代不起作用

Question

我写了这段代码，它应该将一个小写的英语短语翻译成 pig latin。

package main

import (

    "fmt"

    "strings"

    "bufio"

    "github.com/stretchr/stew/slice"

    "regexp"

    "os"

)

func main() {

    lst := []string{"sh", "gl", "ch", "ph", "tr", "br", "fr", "bl", "gr", "st", "sl", "cl", "pl", "fl", "th"}

    reader := bufio.NewReader(os.Stdin)

    fmt.Print("Type what you would like translated into pig-latin and press ENTER: ")

    sentenceraw, _ := reader.ReadString('\n')

    sentence := strings.Split(sentenceraw, " ")

    isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString

    newsentence := make([]string, 0)

    for _, i := range sentence {

        if slice.Contains([]byte{'a', 'e', 'i', 'o', 'u'}, i[0]) {

            newsentence = append(newsentence, strings.Join([]string{string(i), "ay"}, ""))

        } else if slice.Contains(lst, string(i[0])+string(i[1])) {

            newsentence = append(newsentence, strings.Join([]string{string(i[2:]), string(i[:2]), "ay"}, ""))

        } else if !isAlpha(string(i)) {

            newsentence = append(newsentence, strings.Join([]string{string(i)}, ""))

        } else {

            newsentence = append(newsentence, strings.Join([]string{string(i[1:]), string(i[0]), "ay"}, ""))

        }

    }

    fmt.Println(strings.Join(newsentence, " "))

}

但是，它无法对短语中的最后一个单词执行任何操作。

如果我使用句子“the quick brown fox jumped over the lazy dog”我得到“ethay uickqay ownbray oxfay umpedjay overay ethay azylay dog”

这里的一切都是对的，除了最后一句话！为什么它不起作用？如果我使用“hello world”作为我的短语，也会发生同样的事情。

Answer 1

包缓冲区func (*Reader) 读取字符串func (b *Reader) ReadString(delim byte) (string, error)ReadString 一直读取到输入中第一次出现 delim，返回一个包含数据的字符串，直到并包括分隔符。如果 ReadString 在找到分隔符之前遇到错误，它会返回错误之前读取的数据和错误本身（通常是 io.EOF）。当且仅当返回的数据不以 delim 结尾时，ReadString 返回 err != nil。返回包含数据的字符串，包括分隔符。摆脱任何尾随换行符："\n"或"\r\n"。要快速修复，请写：sentence := strings.Split(strings.TrimSpace(sentenceraw), " ")例如，package mainimport (    "bufio"    "fmt"    "os"    "regexp"    "strings"    "github.com/stretchr/stew/slice")func main() {    lst := []string{"sh", "gl", "ch", "ph", "tr", "br", "fr", "bl", "gr", "st", "sl", "cl", "pl", "fl", "th"}    reader := bufio.NewReader(os.Stdin)    fmt.Print("Type what you would like translated into pig-latin and press ENTER: ")    sentenceraw, _ := reader.ReadString('\n')    sentence := strings.Split(strings.TrimSpace(sentenceraw), " ")    isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString    newsentence := make([]string, 0)    for _, i := range sentence {        if slice.Contains([]byte{'a', 'e', 'i', 'o', 'u'}, i[0]) {            newsentence = append(newsentence, strings.Join([]string{string(i), "ay"}, ""))        } else if slice.Contains(lst, string(i[0])+string(i[1])) {            newsentence = append(newsentence, strings.Join([]string{string(i[2:]), string(i[:2]), "ay"}, ""))        } else if !isAlpha(string(i)) {            newsentence = append(newsentence, strings.Join([]string{string(i)}, ""))        } else {            newsentence = append(newsentence, strings.Join([]string{string(i[1:]), string(i[0]), "ay"}, ""))        }    }    fmt.Println(strings.Join(newsentence, " "))}输出：Type what you would like translated into pig-latin and press ENTER: hello worldellohay orldway