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ButcherFactory.Form/Controls/Utils/JST2018SDataFormat.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ButcherFactory.Controls
+{
+  internal class JST2018SDataFormat : DataFormatBase
+  {
+    public override int DataLength
+    {
+      get { return 10; }
+    }
+
+    public override char Beginchar
+    {
+      get { return (char)0xFF; }
+    }
+
+    public override char Endchar
+    {
+      get { return (char)0x37; }
+    }
+
+    public override short Bufsize
+    {
+      get { return 36; }
+    }
+
+    public override string ParseData(string buf, out bool isStatic)
+    {
+      string weight;
+      // 小数位数0-4
+      int dot = (short)(0x07 & buf[1]) - 1;
+      weight = CharTo16(buf[2]) + CharTo16(buf[3]) + CharTo16(buf[4]);
+
+      weight = new string(weight.Reverse().ToArray());
+
+      // insert dot
+      weight = InsertDot(weight, dot);
+      isStatic = true; // 默认 为 稳定
+
+
+      // buffer[1] 符号位
+      if (buf[5] == 0x01)
+      {
+        weight = (Convert.ToDecimal(weight) / 1000).ToString("#0.0");
+      }
+      if ((buf[1] & 0x20) == 1)
+        weight = "-" + weight;
+      return weight;
+    }
+
+    string CharTo16(char c)
+    {
+      return ((int)c).ToString("x2");
+    }
+
+    public override bool ParseAscii(string buf, out string weight, out bool isStatic)
+    {
+      isStatic = false;
+      weight = FindDataFrame(buf, DataLength);
+
+      if (string.IsNullOrEmpty(weight))
+      {
+        return false;
+      }
+
+      weight = ParseData(weight, out isStatic);
+
+      return true;
+    }
+
+    private static string InsertDot(string weight, int dotBits)
+    {
+      var rst = weight.Insert(weight.Length - dotBits, ".").Trim('0');
+      if (rst.StartsWith("."))
+        rst = "0" + rst;
+      return rst;
+    }
+
+    public override bool ParseAscii(string buf, out string weight, out bool isStatic, out string subStr)
+    {
+      weight = "";
+      isStatic = false;
+      subStr = "";
+      return false;
+    }
+  }
+}