/// <summary>
/// 验证
/// </summary>
/// <param name="config">微信支付配置</param>
/// <param name="param">支付参数</param>
protected void Validate(WechatpayConfig config, PayParam param)
{
config.CheckNotNull(nameof(config));
param.CheckNotNull(nameof(param));
config.Validate();
param.Validate();
ValidateParam(param);
}
/// <summary>
/// 初始化一个<see cref="WechatpayParameterBuilder"/>类型的实例
/// </summary>
/// <param name="config">微信支付配置</param>
public WechatpayParameterBuilder(WechatpayConfig config)
{
config.CheckNotNull(nameof(config));
Config = config;
_builder = new ParameterBuilder();
}