问系统资源不足，无法完成所请求的服务

EN

public static byte[] ReadFile(string filePath)
{
    int count;
    int sum = 0;
    byte[] buffer;
    FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);

    try
    {
        int length = (int)stream.Length;
        buffer = new byte[length];

        while ((count = stream.Read(buffer, sum, length - sum)) > 0)
            sum += count;

        return buffer;
    }
    catch (Exception)
    {
        throw;
    }
    finally
    {
        stream.Close();
        stream.Dispose();
    }
}