algorithm - 如何在Go中删除空格

我想删除String值中的空格，例如:“I skd a efju N”到“IdskdaefjuN”，它不起作用...

我尝试使用:

stringValue = strings.Replace(stringValue, " ", "", -1)

package main

import (
    "fmt"
    "strings"
)

func main() {
    //var String
    var stringValue string
    var originalValue string
    fmt.Printf("please, type some text:")
    //user input
    fmt.Scan(&stringValue)
    originalValue = stringValue
    //remove spaces
    stringValue = strings.Replace(stringValue, " ", "", -1)
    //set string to lower case
    stringValue = strings.ToLower(stringValue)
    //if contains substring "i", "a" and "n"
    if strings.Contains(stringValue, "i") && strings.Contains(stringValue, "a") && strings.Contains(stringValue, "n") {
        // if "i" is a prefix and "n" a suffix
        firstChar := strings.HasPrefix(stringValue, "i")
        lastChar := strings.HasSuffix(stringValue, "n")
        switch {
        //if is a prefix and suffix so Found
        case firstChar && lastChar:
            fmt.Printf("Found in %s", originalValue)
        //if isnt a prefix and suffix so Not Found
        default:
            fmt.Printf("Not Found in %s", originalValue)
        }
        //if there's no "i", "a" and "n"
    } else {
        fmt.Printf("Not Found in %s", originalValue)
    }
}

最佳答案

当我尝试运行您的代码时，无法使用fmt.Scan()从stdin正确读取。如果将其替换为从stdin读取的缓冲读取器，则可以使用:

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
)

func main() {
    //var String
    var stringValue string
    var originalValue string
    reader := bufio.NewReader(os.Stdin)
    fmt.Printf("please, type some text:")
    //user input
    stringValue, _ = reader.ReadString('\n')
    stringValue = strings.TrimSuffix(stringValue, "\n")
    originalValue = stringValue
    //remove spaces
    stringValue = strings.ReplaceAll(stringValue, " ", "")
    //set string to lower case
    stringValue = strings.ToLower(stringValue)
    //if contains substring "i", "a" and "n"
    if strings.Contains(stringValue, "i") && strings.Contains(stringValue, "a") && strings.Contains(stringValue, "n") {
        // if "i" is a prefix and "n" a suffix
        firstChar := strings.HasPrefix(stringValue, "i")
        lastChar := strings.HasSuffix(stringValue, "n")
        switch {
        //if is a prefix and suffix so Found
        case firstChar && lastChar:
            fmt.Printf("Found in %s", originalValue)
        //if isnt a prefix and suffix so Not Found
        default:
            fmt.Printf("Not Found in %s", originalValue)
        }
        //if there's no "i", "a" and "n"
    } else {
        fmt.Printf("Not Found in %s", originalValue)
    }
}

关于algorithm - 如何在Go中删除空格，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/57745439/