/// <summary>
/// 快捷发送验证码方法,约定验证码subject为"Captcha"
/// </summary>
/// <param name="sender"></param>
/// <param name="phone">手机号码</param>
/// <param name="args">短信参数</param>
/// <returns></returns>
public static async Task <string> SendCaptchaAsync(this ISmsSender sender, string phone, params string[] args)
{
return(await sender.SendWithCheckAsync(phone, SmsConstants.SubjectCaptcha, args));
}