/// <summary>
 ///     初始化Url参数生成器
 /// </summary>
 /// <param name="url">Url</param>
 /// <param name="builder">Url参数生成器</param>
 public UrlParameterBuilder(string url, UrlParameterBuilder builder = null)
 {
     ParameterBuilder =
         builder == null ? new ParameterBuilder() : new ParameterBuilder(builder.ParameterBuilder);
     LoadUrl(url);
 }
 /// <summary>
 ///     初始化Url参数生成器
 /// </summary>
 /// <param name="builder">Url参数生成器</param>
 public UrlParameterBuilder(UrlParameterBuilder builder) : this("", builder)
 {
 }