添加项目文件。

Helpers/PoreCalculator.cs

@@ -0,0 +1,31 @@
+using MembranePoreTester.Models;
+
+namespace MembranePoreTester.Helpers
+{
+    public static class PoreCalculator
+    {
+        public static double PressureToPore(double pressure, string unit, TestLiquid liquid)
+        {
+            if (liquid == null) return 0;
+            return unit switch
+            {
+                "Pa" => liquid.C_Pa / pressure,
+                "cmHg" => liquid.C_cmHg / pressure,
+                "psi" => liquid.C_psi / pressure,
+                _ => 0
+            };
+        }
+
+        public static double PoreToPressure(double pore, string unit, TestLiquid liquid)
+        {
+            if (liquid == null) return 0;
+            return unit switch
+            {
+                "Pa" => liquid.C_Pa / pore,
+                "cmHg" => liquid.C_cmHg / pore,
+                "psi" => liquid.C_psi / pore,
+                _ => 0
+            };
+        }
+    }
+}