如何在另一个方法中的一个方法中使用局部变量? [英] How can I use a local variable in a method from another method?

问题描述

private void UserYoutubeService()
{
    var youtubeService = new YouTubeService(new BaseClientService.Initializer()
    {
        HttpClientInitializer = credential,
        ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
    });
}

我想在此方法中使用变量 youtubeService :

And I want to use the variable youtubeService in this method:

static List<string> videosList = new List<string>();

public async void RetrieveUploadsList()
{
    UserCredentials();
    UserYoutubeService();

    var channelsListRequest = youtubeService.Channels.List("contentDetails");
}

我在代码的其他位置使用了 UserYoutubeService 方法，但现在我需要在方法 RetrieveUploadsList .如何从 UserYoutubeService 中传递变量 youtubeService ?

I'm using the method UserYoutubeService in other places in my code but now I need to use the local variable youtubeService properties in the method RetrieveUploadsList. How can I pass the variable youtubeService out of the UserYoutubeService?

推荐答案

最简单的方法是从 UserYoutubeService 返回所需的值，如:

The simplest way would be to return the value you want from UserYoutubeService, as in:

private YouTubeService UserYoutubeService() // <-- Note return type
{
    return new YouTubeService(new BaseClientService.Initializer()
    {
        HttpClientInitializer = credential,
        ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
    });
}

您将这样使用:

public async void RetrieveUploadsList()
{
    UserCredentials();
    var youtubeService = UserYoutubeService(); // <--- Change is here

    var channelsListRequest = youtubeService.Channels.List("contentDetails");
    ...

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