/// <summary>
/// 测试识别率。
/// </summary>
/// <param name="verificationCodeCategory">验证码类别。</param>
/// <param name="count">数量。</param>
/// <param name="action">回调函数。</param>
/// <returns>结果。成功数+总数。</returns>
public Tuple <int, int> Test(VerificationCodeCategory verificationCodeCategory, int count, Action <string> action)
{
var successCount = 0;
if (count > 0)
{
using (var ocrApi = OcrApi.Create())
{
ocrApi.Init(Languages.English);
for (int i = 0; i < count; i++)
{
var numberChar = Utils.GetRandString(verificationCodeCategory);
using (var bitmap = Utils.CreateCaptchaSimpleImage(numberChar))
{
var text = ocrApi.GetTextFromImage(bitmap);
var resultSuccess = string.Equals(numberChar?.Trim(), text?.Trim(),
StringComparison.CurrentCultureIgnoreCase);
var resultMessage = resultSuccess
? "识别成功"
: "识别失败";
if (resultSuccess)
{
successCount++;
}
var message = $"{i + 1}, 随机数是{numberChar},验证码识别是{text},结果：{resultMessage}。 \r\n";
action?.Invoke(message);
bitmap.Dispose();
}
}
}
}
return(new Tuple <int, int>(successCount, count));
}
/// <summary>
/// 生成随机数。
/// </summary>
/// <param name="verificationCodeCategory"></param>
/// <param name="length"></param>
/// <returns>随机数。</returns>
public static string GetRandString(VerificationCodeCategory verificationCodeCategory, int length = 4)
{
StringBuilder sb = new StringBuilder();
var numString = "0123456789";
var lowerString = "abcdefghijklmnopqrstuvwxyz";
var upperString = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
var baseStr = string.Empty;
if (verificationCodeCategory.HasFlag(VerificationCodeCategory.Number))
{
baseStr += numString;
}
if (verificationCodeCategory.HasFlag(VerificationCodeCategory.Lowercase))
{
baseStr += lowerString;
}
if (verificationCodeCategory.HasFlag(VerificationCodeCategory.Uppercase))
{
baseStr += upperString;
}
var baseArray = baseStr.ToCharArray();
for (int i = 0; i < length; i++)
{
var ch = baseArray.ElementAt(Random.Next(baseArray.Length));
sb.Append(ch);
}
return(sb.ToString());
}
