{"id":52826,"date":"2024-12-03T14:29:54","date_gmt":"2024-12-03T06:29:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52826\/"},"modified":"2024-12-03T14:29:54","modified_gmt":"2024-12-03T06:29:54","slug":"%e5%9c%a8-react-%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e4%b8%ba-map-%e5%be%aa%e7%8e%af%e5%88%9b%e5%bb%ba%e7%9a%84-div-%e6%b7%bb%e5%8a%a0%e8%a1%8c%e5%8f%b7%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52826\/","title":{"rendered":"\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f<\/h1>\n<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300a\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241123\/17323598246741b6905d7cf.jpg\" class=\"aligncenter\" title=\"\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f\u63d2\u56fe\" alt=\"\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5728 react \u4e2d\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7<\/strong><\/p>\n<p>\u4e3a\u4e86\u7ed9\u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6848\uff1a<\/p>\n<p>\u9996\u5148\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u4f5c\u4e3a\u884c\u53f7\u5bb9\u5668\u7684 div\uff0c\u8bbe\u7f6e\u5176 position \u4e3a absolute\uff0c\u5e76\u653e\u7f6e\u5728\u5de6\u4fa7\u3002\u7136\u540e\uff0c\u5c06\u5faa\u73af\u521b\u5efa\u7684 div \u8bbe\u7f6e position \u4e3a relative\uff0c\u5e76\u8bbe\u7f6e\u7236\u5143\u7d20\u4e3a overflow: hidden\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u884c\u53f7\u7f6e\u4e8e div \u7684\u5de6\u4fa7\u3002<\/p>\n<p>\u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>\/\/ index.js\nimport react from \"react\";\nimport reactdom from \"react-dom\";\nimport \".\/styles.css\";\n\nfunction app() {\n  const itemdata = new array(500).fill(0);\n  const indexdata = new array(20).fill(0);\n\n  return (\n    &lt;div classname=\"app\"&gt;\n      &lt;div classname=\"left-box\"&gt;\n        {indexdata.map((item, index) =&gt; (\n          &lt;div\n            key={index}\n            style={{\n              fontsize: \"9px\",\n              width: \"19px\",\n              height: \"20px\",\n              margin: \"2px\",\n            }}\n          &gt;\n            {index + 1}\n          &lt;\/div&gt;\n        ))}\n      &lt;\/div&gt;\n      &lt;div classname=\"right-box\"&gt;\n        {itemdata.map((item, index) =&gt; (\n          &lt;div\n            key={index}\n            style={{\n              display: \"inline-block\",\n              width: \"9px\",\n              height: \"9px\",\n              margin: \"2px\",\n              backgroundcolor: item.selected ? \"green\" : \"lightgreen\",\n            }}\n          &gt;&lt;\/div&gt;\n        ))}\n      &lt;\/div&gt;\n    &lt;\/div&gt;\n  );\n}\n\nconst rootelement = document.getelementbyid(\"root\");\nreactdom.render(&lt;app \/&gt;, rootelement);<\/pre>\n<pre>\/\/ styles.css\n.App {\n  font-family: sans-serif;\n  text-align: center;\n  overflow: hidden;\n  position: relative;\n}\n\n.left-box {\n  position: absolute;\n  left: 0;\n  top: 0;\n\n  width: 19px;\n  overflow: hidden;\n}\n\n.right-box {\n  margin-left: 19px;\n}<\/pre>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u5982\u4f55\u5b9e\u73b0\u7f51\u9875\u4e24\u884c\u6587\u672c\u7684ellipsis\u5e76\u8ddf\u968f\u52a8\u6001\u5757\u72b6\u5185\u5bb9\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f \u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300a\u5728 React \u4e2d\uff0c\u5982\u4f55\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01 \u5728 react \u4e2d\u4e3a map \u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7 \u4e3a\u4e86\u7ed9\u5faa\u73af\u521b\u5efa\u7684 div \u6dfb\u52a0\u884c\u53f7\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6848\uff1a \u9996\u5148\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u4f5c\u4e3a\u884c\u53f7\u5bb9\u5668\u7684 div\uff0c\u8bbe\u7f6e\u5176 position \u4e3a absolute\uff0c\u5e76\u653e\u7f6e\u5728\u5de6\u4fa7\u3002\u7136\u540e\uff0c\u5c06\u5faa\u73af\u521b\u5efa\u7684 div \u8bbe\u7f6e position \u4e3a relative\uff0c\u5e76\u8bbe\u7f6e\u7236\u5143\u7d20\u4e3a overflow: hidden\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u884c\u53f7\u7f6e\u4e8e div \u7684\u5de6\u4fa7\u3002 \u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\uff1a \/\/ index.js import react from &#8220;react&#8221;; import reactdom from &#8220;react-dom&#8221;; import &#8220;.\/styles.css&#8221;; function app() { const [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-52826","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52826","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=52826"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52826\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}