1// 用于电子商务平台的尺码转换函数
2function convertShoeSize(sourceSize, sourceSystem, targetSystem, gender) {
3  // 不同性别和系统的查找表
4  const conversionTables = {
5    men: {
6      us: [6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12],
7      uk: [5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5],
8      eu: [39, 39.5, 40, 41, 41.5, 42, 42.5, 43, 44, 44.5, 45, 45.5, 46],
9      jp: [24, 24.5, 25, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29, 29.5, 30]
10    },
11    women: {
12      us: [5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11],
13      uk: [3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9],
14      eu: [35, 36, 36.5, 37, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43],
15      jp: [21.5, 22, 22.5, 23, 23.5, 24, 24.5, 25, 25.5, 26, 26.5, 27, 27.5]
16    }
17  };
18  
19  // 查找源系统中的索引
20  const sourceIndex = conversionTables[gender][sourceSystem].findIndex(
21    size => Math.abs(size - sourceSize) < 0.1
22  );
23  
24  if (sourceIndex === -1) return null; // 找不到尺码
25  
26  // 返回目标系统中的对应尺码
27  return conversionTables[gender][targetSystem][sourceIndex];
28}
29
30// 示例：将美国男士尺码 9 转换为欧洲尺码
31const euSize = convertShoeSize(9, 'us', 'eu', 'men');
32console.log(`美国男士尺码 9 等于欧洲尺码 ${euSize}`); // 输出：美国男士尺码 9 等于欧洲尺码 42.5
33

1public class ShoeSizeConverter {
2    // 男士鞋子的转换表
3    private static final double[] US_MEN = {6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12};
4    private static final double[] UK_MEN = {5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5};
5    private static final double[] EU_MEN = {39, 39.5, 40, 41, 41.5, 42, 42.5, 43, 44, 44.5, 45, 45.5, 46};
6    private static final double[] JP_MEN = {24, 24.5, 25, 25.5, 26, 26.5, 27, 27.5, 28, 28.5, 29, 29.5, 30};
7    
8    /**
9     * 生成制造的多系统尺码标签
10     * @param baseSize 制造商系统中的基础尺码
11     * @param baseSystem 制造商的尺码系统
12     * @return 包含所有主要系统尺码的字符串
13     */
14    public static String generateSizeLabel(double baseSize, String baseSystem) {
15        String gender = "men"; // 在这个示例中，假设为男士鞋
16        
17        double usSize = convertSize(baseSize, baseSystem, "us", gender);
18        double ukSize = convertSize(baseSize, baseSystem, "uk", gender);
19        double euSize = convertSize(baseSize, baseSystem, "eu", gender);
20        double jpSize = convertSize(baseSize, baseSystem, "jp", gender);
21        
22        return String.format("美国: %.1f | 英国: %.1f | 欧洲: %.1f | 日本: %.1f", 
23                            usSize, ukSize, euSize, jpSize);
24    }
25    
26    private static double convertSize(double size, String fromSystem, String toSystem, String gender) {
27        // 实现将使用类似于之前示例的查找表
28        // 为简洁起见省略
29        return 0.0; // 占位符
30    }
31    
32    public static void main(String[] args) {
33        String label = generateSizeLabel(42, "eu");
34        System.out.println("尺码标签: " + label);
35    }
36}
37

11. 将一张纸放在墙边
22. 站在纸上，脚跟紧贴墙壁
33. 标记最长脚趾的位置
44. 测量墙壁到标记的距离，单位为毫米
55. 使用这个测量值查找任何系统中的尺码
6

1// C 函数将脚长转换为蒙多点
2int footLengthToMondopoint(double lengthMm) {
3    // 蒙多点是脚长的毫米数，四舍五入到最近的 5 毫米
4    return 5 * (int)((lengthMm + 2.5) / 5.0);
5}
6
7// 示例用法
8int mondopoint = footLengthToMondopoint(267.8);
9printf("脚长 267.8 毫米 = 蒙多点 %d\n", mondopoint); // 输出：蒙多点 270
10

1public enum ShoeWidth
2{
3    Narrow, // AA, A
4    Regular, // B, C, D
5    Wide, // E, EE
6    ExtraWide // EEE+
7}
8
9public class ShoeSizeWithWidth
10{
11    public double Size { get; set; }
12    public string System { get; set; }
13    public ShoeWidth Width { get; set; }
14    
15    public override string ToString()
16    {
17        string widthLabel = Width switch
18        {
19            ShoeWidth.Narrow => "窄",
20            ShoeWidth.Regular => "标准",
21            ShoeWidth.Wide => "宽",
22            ShoeWidth.ExtraWide => "超宽",
23            _ => ""
24        };
25        
26        return $"尺码: {Size} {System}, 宽度: {widthLabel}";
27    }
28}
29