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2026-10-09 16:46:30 +08:00
parent 4a634ef4c2
commit e6b90a06ab
63 changed files with 4170 additions and 1518 deletions
@@ -0,0 +1,22 @@
+namespace Evergreen.Health.Application.Health.Policies;
+
+/// <summary>Demo 起点，可由用户手动修改，不是医学或人体工学判断。</summary>
+public static class BmiFirmnessPolicy
+{
+    public static decimal? Calculate(decimal? heightCm, decimal? weightKg)
+    {
+        if (heightCm is null or <= 0 || weightKg is null or <= 0) return null;
+        try
+        {
+            var height = heightCm.Value / 100m;
+            return Math.Round(weightKg.Value / (height * height), 1);
+        }
+        catch (ArithmeticException) { return null; }
+    }
+
+    public static string? Firmness(decimal? bmi) => bmi switch
+    {
+        < 18.5m => "很软", < 24m => "稍软", < 28m => "稍硬",
+        < 32m => "很硬", >= 32m => "最硬", _ => null
+    };
+}