{"id":2114,"date":"2026-05-26T08:05:43","date_gmt":"2026-05-26T08:05:43","guid":{"rendered":"https:\/\/www.vpascode.com\/ja\/docs\/uncategorized\/mermaid-js-class-diagram-syntax-guide\/"},"modified":"2026-05-26T08:05:43","modified_gmt":"2026-05-26T08:05:43","slug":"mermaid-js-class-diagram-syntax-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/ja\/docs\/vpascode-docs\/mermaid-js-class-diagram-syntax-guide\/","title":{"rendered":"Mermaid.js \u30af\u30e9\u30b9\u56f3\u306e\u69cb\u6587\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u30af\u30e9\u30b9\u56f3\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n

A \u30af\u30e9\u30b9\u56f3<\/strong>\u306f\u69cb\u9020\u7684\u306a UML\u56f3<\/strong>\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u9759\u7684\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u53ef\u8996\u5316\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u4e0d\u53ef\u6b20\u306a UML\u56f3\u306e\u7a2e\u985e<\/strong>\u3068\u3057\u3066\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5185\u306e\u500b\u3005\u306e\u30af\u30e9\u30b9\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3001\u5185\u90e8\u30d5\u30a3\u30fc\u30eb\u30c9\uff08\u5c5e\u6027\uff09\u3001\u64cd\u4f5c\u6a5f\u80fd\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3001\u305d\u308c\u3089\u3092\u7d50\u3073\u3064\u3051\u308b\u69cb\u9020\u7684\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u6587\u66f8\u5316\u3057\u307e\u3059\u3002\u3053\u306e\u30d6\u30eb\u30fc\u30d7\u30ea\u30f3\u30c8\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30c9\u30e1\u30a4\u30f3\u8a2d\u8a08\u3092\u660e\u78ba\u3067\u4fdd\u5b88\u53ef\u80fd\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u69cb\u9020\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n

\u305d\u3057\u3066 Mermaid.js<\/strong>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u76f4\u611f\u7684\u3067\u30c6\u30ad\u30b9\u30c8\u30d9\u30fc\u30b9\u306e\u5b9a\u7fa9\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3084\u30b7\u30b9\u30c6\u30e0\u30b5\u30fc\u30d3\u30b9\u3092\u6982\u8981\u5316\u3067\u304d\u307e\u3059\u3002\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u306f\u30dc\u30c3\u30af\u30b9\u306e\u30b5\u30a4\u30ba\u3092\u81ea\u52d5\u8a08\u7b97\u3057\u3001\u6a19\u6e96\u7684\u306aUML\u30c7\u30fc\u30bf\u30b3\u30f3\u30d1\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u69cb\u9020\u5316\u3057\u3001\u624b\u52d5\u3067\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u4f5c\u696d\u306a\u3057\u306b\u30ad\u30e3\u30f3\u30d0\u30b9\u4e0a\u3067\u95a2\u4fc2\u6027\u306e\u77e2\u5370\u3092\u6574\u5217\u3057\u307e\u3059\u3002<\/p>\n

\u30b3\u30a2\u69cb\u6587\u30ac\u30a4\u30c9\uff1a\u8981\u7d20\u3068\u69cb\u9020<\/h2>\n

Mermaid\u3067\u6b63\u78ba\u3067\u6a19\u6e96\u6e96\u62e0\u306eUML\u30af\u30e9\u30b9\u56f3\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u30e1\u30f3\u30d0\u30fc\u5ba3\u8a00\u3001\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3001\u69cb\u9020\u7684\u95a2\u4fc2\u77e2\u5370\u3092\u7fd2\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

1. \u30af\u30e9\u30b9\u3068\u30af\u30e9\u30b9\u30b3\u30f3\u30d1\u30fc\u30c8\u30e1\u30f3\u30c8\u306e\u5ba3\u8a00<\/h3>\n

\u30af\u30e9\u30b9\u306f2\u3064\u306e\u6709\u52b9\u306a\u5f62\u5f0f\u3067\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u30af\u30e9\u30b9\u306e\u5834\u5408\u3001class<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5f8c\u306b\u30af\u30e9\u30b9\u540d\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30d5\u30a3\u30fc\u30eb\u30c9\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u3059\u3050\u306b\u542b\u3081\u305f\u3044\u5834\u5408\u306f\u3001\u672b\u5c3e\u306b\u6ce2\u304b\u3063\u3053\u3092\u4f7f\u7528\u3057\u3066\u660e\u78ba\u306a\u672c\u4f53\u30d6\u30ed\u30c3\u30af\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a<\/p>\n

\n
\nMermaid<\/span>
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Mermaid\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n
\n
\r\n
\r\n Mermaid<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit Mermaid in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
classDiagram\r\n    class UserProfile {\r\n        +String username\r\n        +String email\r\n        +updateEmail(newEmail) void\r\n    }<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Mermaid\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
2. \u53ef\u8996\u6027\uff0f\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u8ffd\u52a0<\/h3>\n
\u6a19\u6e96\u7684\u306aUML\u30ab\u30d7\u30bb\u30eb\u5316\u30eb\u30fc\u30eb\u3092\u6587\u66f8\u5316\u3059\u308b\u306b\u306f\u3001\u5c5e\u6027\u307e\u305f\u306f\u30e1\u30bd\u30c3\u30c9\u540d\u306e\u76f4\u524d\u306b\u7279\u5b9a\u306e\u8a18\u53f7\u3092\u914d\u7f6e\u3057\u3066\u3001\u305d\u306e\u53ef\u8996\u6027\u30ec\u30d9\u30eb\u3092\u5b9a\u7fa9\u3057\u307e\u3059\uff1a<\/p>\n