添加项目文件。

common/Tnb.Common/Captcha/General/IGeneralCaptcha.cs

@@ -0,0 +1,17 @@
+namespace JNPF.Common.Captcha.General;
+
+/// <summary>
+/// 常规验证码.
+/// </summary>
+public interface IGeneralCaptcha
+{
+    /// <summary>
+    /// 创建验证码图片.
+    /// </summary>
+    /// <param name="timestamp">时间戳.</param>
+    /// <param name="width">宽度.</param>
+    /// <param name="height">高度.</param>
+    /// <param name="length">长度.</param>
+    /// <returns></returns>
+    Task<byte[]> CreateCaptchaImage(string timestamp, int width, int height, int length = 4);
+}