c#下载文件,最简单代码

/// <summary>
/// 下载文件
/// </summary>
/// <param name="url">下载地址</param>
/// <param name="filePath">存放地址</param>
/// <returns>-1不存在0失败1成功</returns>
public static sbyte DownFile(string url, string filePath)
{
try
{
var client = new WebClient {Credentials = CredentialCache.DefaultCredentials};
client.DownloadFile(url, filePath);
return 1;
}
catch (WebException ex)
{
TextTool.Log(ex,url);
if (ex.Message.Contains("404"))
{
return -1;
}
}
catch (Exception e)
{
TextTool.Log(e,url);
}
return 0;
}