检查字符串是否在字符串切片中。

huangapple
go评论113阅读模式
英文:

Go check if string in slices of string

问题

作为前言，我来自Python，我会使用一个包含值的列表，而不是字符串切片，并使用 "if x in list"。请告诉我我是否做错了。

我需要从用户那里获取输入，如果它包含在我的切片字符串中，那么就跳出循环并继续执行，否则再次提示用户。现在我有这个代码：

  1. package main
  3. import (
  4.     "bufio"
  5.     "fmt"
  6.     "os"
  7.     "os/exec"
  8.     "strings"
  9. )
  11. func main() {
  12.     reader := bufio.NewReader(os.Stdin)
  13.     foundfdb := false
  14.     fdbslices := []string{"f", "d", "b", "files", "directories", "both"}
  16.     for {
  17.         fmt.Print("Files, Directories, or Both: ")
  18.         fdb, _ := reader.ReadString('\n')
  19.         fdb = strings.ToLower(fdb)
  20.         for i := range fdbslices {
  21.             if strings.ContainsAny(fdbslices[i], fdb) {
  22.                 foundfdb = true
  23.             }
  24.         }
  25.         if foundfdb = true {
  26.             break
  27.         }
  28.     }
  29. }

似乎 ContainsAny() 给了我一些错误的结果。肯定有更简单的方法来做到这一点，或者有吗？

英文:

As a preface I'm coming from python, where I would have a list with my values instead of string slices and do "if x in list". Please tell me if I'm doing this wrong.

I need to take input from the user, if it's contained in my sliced string then break out of my loop and continue, otherwise prompt the user again. Right now I have this

  1. package main
  3. import (
  4.     "bufio"
  5.     "fmt"
  6.     "os"
  7.     "os/exec"
  8.     "strings"
  9. )
  11. func main() {
  12.     reader := bufio.NewReader(os.Stdin)
  13.     foundfdb := false
  14.     fdbslices := []string{"f", "d", "b", "files", "directories", "both"}
  16.     for {
  17.         fmt.Print("Files, Directories, or Both: ")
  18.         fdb, _ := reader.ReadString('\n')
  19.         fdb = strings.ToLower(fdb)
  20.         for i := range fdbslices {
  21.             if strings.ContainsAny(fdbslices[i], fdb) {
  22.                 foundfdb = true
  23.             }
  24.         }
  25.         if foundfdb = true {
  26.             break
  27.         }
  28.     }
  29. }

It seems ContainsAny() is giving me some false positives. There's got to be an easier way to do this, or is there?

答案1

得分: 4

ContainsAny允许你查找一个特定的字符是否在一个特定的字符串中，我不认为这是你想要的。对于我的一个项目，我实现了一个函数来在一个切片中查找一个字符串：

  1. func InArray(a []string, e string) bool {
  2.     for _, x := range a {
  3.         if x == e {
  4.             return true
  5.         }
  6.     }
  7.     return false
  8. }
英文:

ContainsAny allows you to look for a specific character is in a specific string, and I do not think that's what you want. For one of my projects, I implemented a function to look for a string in a slice:

  1. func InArray(a []string, e string) bool {
  2.     for _, x := range a {
  3.         if x == e {
  4.             return true
  5.         }
  6.     }
  7.     return false
  8. }

huangapple
  • 本文由 发表于 2014年6月6日 18:56:21
  • 转载请务必保留本文链接：https://go.coder-hub.com/24080147.html
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