Question

我目前正在开发一个项目，该项目正在创建一个快速翻译程序来使用Google的API弄乱文本。但是我一直遇到CS0168警告，但不知道如何解决。代码在这里：

using System;
using Google.Cloud.Translation.V2;

namespace Program
{
    public partial class Translate
    {
        [STAThread]
        private static void Main()
        {

            Console.WriteLine("Write text to become cursed");
            string Phrase = Console.ReadLine();

            string TranslateText() //this variable is the problem
            {
                TranslationClient client = TranslationClient.Create();
                //this block repeats with the language changing each time
                var response = client.TranslateText(
                    text: Phrase,
                    targetLanguage: "language",
                    sourceLanguage: "language");
                Console.WriteLine(response.TranslatedText);
                Phrase = response.TranslatedText;
                //end of reapeat
                return response.TranslatedText;
            }
        }
    }
}

即使我忽略警告，程序也不会运行。

Answer 1

您的代码有两个主要问题：

正如其他人指出的那样，您声明了局部函数，但从未使用过。
该应用程序已完成所有工作，因此立即退出。您需要在末尾添加Console.ReadLine();或Console.ReadKey();，以防止其关闭。

尝试这样的事情：

static void Main(string[] args)
{
    Console.WriteLine("Write text to become cursed");
    string Phrase = Console.ReadLine();

    string TranslateText()
    {
        TranslationClient client = TranslationClient.Create();
        //this block repeats with the language changing each time
        var response = client.TranslateText(
            text: Phrase,
            targetLanguage: "language",
            sourceLanguage: "language");
        Console.WriteLine(response.TranslatedText);
        Phrase = response.TranslatedText;
        //end of reapeat
        return response.TranslatedText;
    }

    string translatedText = TranslateText();
    Console.WriteLine("The translated text is: " + translatedText);
    Console.WriteLine("Press any key to exit.");
    Console.ReadKey();
}

话虽如此，局部函数可能不是处理此问题的最佳方法。相反，您可以将其移至Main之外并向其添加一个字符串参数，以便可以将该短语作为参数传递给它。在这种情况下，您的代码将如下所示：

static void Main(string[] args)
{
    Console.WriteLine("Write text to become cursed");
    string phrase = Console.ReadLine();

    string translatedText = TranslateText(phrase);
    Console.WriteLine("The translated text is: " + translatedText);
    Console.WriteLine("Press any key to exit.");
    Console.ReadKey();
}

static string TranslateText(string phrase)
{
    TranslationClient client = TranslationClient.Create();
    //this block repeats with the language changing each time
    var response = client.TranslateText(
        text: phrase,
        targetLanguage: "language",
        sourceLanguage: "language");
    Console.WriteLine(response.TranslatedText);
    //end of reapeat
    return response.TranslatedText;
}

变量已声明但从未使用过

1 个答案: