From 5ffd8163f0ff1c6fb70cf8c3ac6e23383b59b08c Mon Sep 17 00:00:00 2001
From: kercylan98 <kercylan@gmail.com>
Date: Mon, 11 Dec 2023 11:47:39 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20super=20=E5=8C=85=E6=96=B0=E5=A2=9E=20N?=
 =?UTF-8?q?umberToRome=20=E5=87=BD=E6=95=B0=EF=BC=8C=E6=94=AF=E6=8C=81?=
 =?UTF-8?q?=E5=B0=86=E6=95=B4=E6=95=B0=E8=BD=AC=E4=B8=BA=E7=BD=97=E9=A9=AC?=
 =?UTF-8?q?=E6=95=B0=E5=AD=97?=
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---
 utils/super/number.go      | 12 ++++++++++++
 utils/super/number_test.go | 28 ++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 utils/super/number_test.go

diff --git a/utils/super/number.go b/utils/super/number.go
index 8bbd565..d719206 100644
--- a/utils/super/number.go
+++ b/utils/super/number.go
@@ -2,8 +2,20 @@ package super
 
 import "reflect"
 
+var (
+	romeThousands = []string{"", "M", "MM", "MMM"}
+	romeHundreds  = []string{"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"}
+	romeTens      = []string{"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"}
+	romeOnes      = []string{"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"}
+)
+
 // IsNumber 判断是否为数字
 func IsNumber(v any) bool {
 	kind := reflect.Indirect(reflect.ValueOf(v)).Kind()
 	return kind >= reflect.Int && kind <= reflect.Float64
 }
+
+// NumberToRome 将数字转换为罗马数字
+func NumberToRome(num int) string {
+	return romeThousands[num/1000] + romeHundreds[num%1000/100] + romeTens[num%100/10] + romeOnes[num%10]
+}
diff --git a/utils/super/number_test.go b/utils/super/number_test.go
new file mode 100644
index 0000000..f31a76d
--- /dev/null
+++ b/utils/super/number_test.go
@@ -0,0 +1,28 @@
+package super_test
+
+import (
+	"github.com/kercylan98/minotaur/utils/super"
+	"testing"
+)
+
+func TestNumberToRome(t *testing.T) {
+	tests := []struct {
+		input  int
+		output string
+	}{
+		{input: 1, output: "I"},
+		{input: 5, output: "V"},
+		{input: 10, output: "X"},
+		{input: 50, output: "L"},
+		{input: 100, output: "C"},
+		{input: 500, output: "D"},
+		{input: 1000, output: "M"},
+	}
+
+	for _, test := range tests {
+		result := super.NumberToRome(test.input)
+		if result != test.output {
+			t.Errorf("NumberToRome(%d) = %s; want %s", test.input, result, test.output)
+		}
+	}
+}