我想刪除字符串值中的空格，例如：“I d skd a efju N”到“IdskdaefjuN”，但它不起作用......我嘗試使用：stringValue = strings.Replace(stringValue, " ", "", -1)package mainimport (    "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)    }}