{"id":80247,"date":"2026-03-04T18:57:13","date_gmt":"2026-03-04T10:57:13","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/80247.html"},"modified":"2026-03-04T18:57:13","modified_gmt":"2026-03-04T10:57:13","slug":"%e4%bb%8e%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8f-data-id-%e5%88%b0-react-%e5%88%97%e8%a1%a8%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%ef%bc%9a%e5%b0%91%e7%94%a8%e9%97%ad%e5%8c%85%ef%bc%8c%e5%a4%9a","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/80247.html","title":{"rendered":"\u4ece\u5fae\u4fe1\u5c0f\u7a0b\u5e8f data-id \u5230 React \u5217\u8868\u6027\u80fd\u4f18\u5316\uff1a\u5c11\u7528\u95ed\u5305\uff0c\u591a\u7528 data-*"},"content":{"rendered":"<p>                    \u4ee5\u5c0f\u7a0b\u5e8f\u91cc\u5e38\u89c1\u7684 data-* \u4f20\u53c2\u4e3a\u5f15\u5b50&#xff0c;\u8bb2 React \u5217\u8868\u91cc\u300c\u95ed\u5305 &#043; map\u300d\u5bf9 memo\/\u865a\u62df\u5316\u7684\u5f71\u54cd&#xff0c;\u4ee5\u53ca\u7528 data-* 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id<\/p>\n<p>\u8fd9\u6837\u505a\u7684\u539f\u56e0\u4e4b\u4e00\u662f\u5c0f\u7a0b\u5e8f\u7aef\u5bf9\u300c\u540c\u4e00\u51fd\u6570\u5f15\u7528\u300d\u66f4\u53cb\u597d&#xff0c;\u5217\u8868\u66f4\u65b0\u65f6\u4e0d\u4f1a\u56e0\u4e3a\u6bcf\u9879\u90fd\u7ed1\u4e86\u65b0\u51fd\u6570\u800c\u4ea7\u751f\u591a\u4f59\u5f00\u9500\u3002<br \/>\n\u56de\u5230\u00a0React&#xff0c;\u6211\u4eec\u5374\u7ecf\u5e38\u5728\u5217\u8868\u91cc\u5199\u300c\u6bcf\u4e2a item \u4e00\u4e2a\u95ed\u5305\u300d\u2014\u2014\u5199\u6cd5\u7b80\u5355&#xff0c;\u4f46\u5728\u5927\u5217\u8868\u6216\u914d\u5408 memo\u3001\u865a\u62df\u5316\u65f6&#xff0c;\u5c31\u4f1a\u66b4\u9732\u51fa\u6027\u80fd\u4e0e\u4f18\u5316\u96be\u5ea6\u95ee\u9898\u3002\u4e0b\u9762\u5148\u8bf4\u5e38\u89c1\u5199\u6cd5\u7684\u95ee\u9898&#xff0c;\u518d\u7ed9\u51fa\u4e0e\u5c0f\u7a0b\u5e8f\u601d\u8def\u4e00\u81f4\u7684\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n<h4>\u4e8c\u3001React \u91cc\u7684\u5e38\u89c1\u5199\u6cd5&#xff1a;.map() 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\/>\n\u4f46\u80cc\u540e\u6709\u4e00\u4e2a\u4e8b\u5b9e&#xff1a;\u6bcf\u6b21\u7ec4\u4ef6\u6e32\u67d3\u65f6&#xff0c;\u4f60\u90fd\u5728\u4e3a\u5217\u8868\u4e2d\u7684\u6bcf\u4e00\u9879\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\u2014\u2014\u4e00\u4e2a\u6355\u83b7\u4e86\u5f53\u524d\u00a0item.id\u00a0\u7684\u95ed\u5305\u3002\u5728\u5927\u591a\u6570\u5c0f\u5217\u8868\u573a\u666f\u4e0b&#xff0c;\u8fd9\u4e0d\u4f1a\u6709\u660e\u663e\u5f71\u54cd&#xff1b;\u4e00\u65e6\u5217\u8868\u53d8\u957f\u3001\u6216\u4f60\u5f00\u59cb\u505a\u300c\u51cf\u5c11\u91cd\u6e32\u67d3\u300d\u7684\u4f18\u5316&#xff0c;\u8fd9\u79cd\u5199\u6cd5\u5c31\u4f1a\u6210\u4e3a\u969c\u788d\u3002<\/p>\n<h4>\u4e09\u3001\u95ed\u5305\u7684\u6f5c\u5728\u5f0a\u7aef<\/h4>\n<p>\u95ed\u5305\u662f JavaScript \u548c React \u7684\u6838\u5fc3\u6982\u5ff5&#xff0c;\u4f46\u5728\u00a0.map() \u91cc\u4e3a\u6bcf\u9879\u521b\u5efa\u4e00\u4e2a\u65b0\u51fd\u6570\u00a0\u53ef\u80fd\u5e26\u6765\u8fd9\u4e9b\u95ee\u9898&#xff1a;<\/p>\n<h4>1. \u7834\u574f memo 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\/>\nreact-virtualized&#xff09;&#xff0c;\u53ea\u6e32\u67d3\u53ef\u89c1\u9879&#xff0c;\u540c\u6837\u4f9d\u8d56\u300c\u56de\u8c03\u5f15\u7528\u7a33\u5b9a\u300d\u6216\u81f3\u5c11\u300c\u4e0d\u56e0\u5217\u8868\u6570\u636e\u5f15\u7528\u53d8\u5c31\u5168\u91cf\u66f4\u65b0\u300d\u3002\u6bcf\u9879\u4e00\u4e2a\u95ed\u5305\u4f1a\u5bfc\u81f4\u6bcf\u6b21\u7236\u7ec4\u4ef6\u6e32\u67d3\u65f6&#xff0c;\u6240\u6709\u53ef\u89c1\u9879\u7684 onClick \u90fd\u662f\u65b0\u5f15\u7528&#xff0c;\u865a\u62df\u5316\u7684\u6536\u76ca\u88ab\u524a\u5f31\u3002<\/li>\n<\/ul>\n<h4>2. 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