unity 下载文件到存放本地

一、下载图片存放本地文件夹

    public void DownloadFile() 
    {
        WebClient webClient = new WebClient();
        //将图片下载到文件夹
        webClient.DownloadFileAsync(new System.Uri("https://www.baidu.com/img/pc_9c5c85e6b953f1d172e1ed6821618b91.png"), "G:\桌面\temp.png");
        //显示下载进度
        webClient.DownloadProgressChanged += WebClient_DownloadProgressChanged;
    }

    private void WebClient_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
    {
        Debug.LogError(e.ProgressPercentage);
    }

二、下载图片，存放Asset文件

public static async Task Loadbyte(string uri)=>await webClient.DownloadDataTaskAsync(uri);

        var course = savaData.coursesTree.treeAgg[0].subCategories[0].courses[0];
        course.coverbyte = await HttpTool.Loadbyte(course.cover);
        Texture2D texture2D = new Texture2D(500, 500);

        texture2D.LoadImage(course.coverbyte);
        rawImage.texture = texture2D;