{"id":1853,"date":"2025-02-21T23:17:02","date_gmt":"2025-02-21T15:17:02","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=1853"},"modified":"2025-02-21T23:17:02","modified_gmt":"2025-02-21T15:17:02","slug":"css3-%e5%bc%b9%e6%80%a7%e7%9b%92%e5%ad%90flex-box","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/21\/css3-%e5%bc%b9%e6%80%a7%e7%9b%92%e5%ad%90flex-box\/","title":{"rendered":"CSS3 \u5f39\u6027\u76d2\u5b50(Flex Box)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">CSS3 \u5f39\u6027\u76d2\u5b50\uff08Flexbox\uff09\u662f\u4e00\u79cd\u5e03\u5c40\u6a21\u578b\uff0c\u5b83\u5141\u8bb8\u5728\u5bb9\u5668\u5185\u7684\u5143\u7d20\u4e4b\u95f4\u8fdb\u884c\u52a8\u6001\u5e03\u5c40\uff0c\u5e76\u80fd\u8f7b\u677e\u5730\u63a7\u5236\u5143\u7d20\u7684\u5bf9\u9f50\u3001\u65b9\u5411\u3001\u5927\u5c0f\u548c\u987a\u5e8f\u3002Flexbox \u662f\u54cd\u5e94\u5f0f\u8bbe\u8ba1\u4e2d\u5e38\u7528\u7684\u5e03\u5c40\u65b9\u5f0f\uff0c\u5b83\u6bd4\u4f20\u7edf\u7684\u5e03\u5c40\u65b9\u6cd5\uff08\u5982\u6d6e\u52a8\u548c\u5b9a\u4f4d\uff09\u66f4\u52a0\u7b80\u6d01\u548c\u7075\u6d3b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Flexbox \u57fa\u672c\u6982\u5ff5<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bb9\u5668 (Flex Container)<\/strong>\uff1aFlexbox \u7684\u57fa\u7840\u662f\u4e00\u4e2a\u5bb9\u5668\uff0c\u901a\u8fc7\u8bbe\u7f6e <code>display: flex<\/code> \u6216 <code>display: inline-flex<\/code> \u6765\u521b\u5efa\u3002<\/li>\n\n\n\n<li><strong>\u9879 (Flex Items)<\/strong>\uff1a\u5bb9\u5668\u4e2d\u7684\u76f4\u63a5\u5b50\u5143\u7d20\u662f flex \u9879\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u8bbe\u7f6e Flexbox \u5bb9\u5668<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>\u65b9\u5411\u63a7\u5236 (flex-direction)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>flex-direction<\/code> \u5c5e\u6027\u5b9a\u4e49\u4e86\u4e3b\u8f74\u7684\u65b9\u5411\uff0c\u4ece\u800c\u63a7\u5236 flex \u9879\u7684\u6392\u5217\u65b9\u5411\u3002\u53ef\u9009\u503c\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>row<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u6cbf\u4e3b\u8f74\uff08\u6c34\u5e73\u65b9\u5411\uff09\u6392\u5217\u3002<\/li>\n\n\n\n<li><code>column<\/code>\uff1a\u6cbf\u4e3b\u8f74\uff08\u5782\u76f4\u65b9\u5411\uff09\u6392\u5217\u3002<\/li>\n\n\n\n<li><code>row-reverse<\/code>\uff1a\u4e0e <code>row<\/code> \u76f8\u53cd\uff0c\u53cd\u5411\u6392\u5217\u3002<\/li>\n\n\n\n<li><code>column-reverse<\/code>\uff1a\u4e0e <code>column<\/code> \u76f8\u53cd\uff0c\u53cd\u5411\u6392\u5217\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u63a7\u5236\u6392\u5217\u65b9\u5411<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n  flex-direction: row; \/* \u6c34\u5e73\u65b9\u5411\u6392\u5217 *\/\n}\n\n.container.column {\n  flex-direction: column; \/* \u5782\u76f4\u65b9\u5411\u6392\u5217 *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>\u6362\u884c (flex-wrap)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>flex-wrap<\/code> \u5c5e\u6027\u63a7\u5236 Flex \u5bb9\u5668\u662f\u5426\u5141\u8bb8\u6362\u884c\u3002\u5982\u679c\u5bb9\u5668\u7684\u5bbd\u5ea6\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u6240\u6709\u9879\u65f6\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u9879\u4f1a\u5728\u4e00\u884c\u5185\u663e\u793a\u3002\u4f7f\u7528 <code>flex-wrap<\/code> \u53ef\u4ee5\u5141\u8bb8\u9879\u6362\u884c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>nowrap<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u4e0d\u6362\u884c\u3002<\/li>\n\n\n\n<li><code>wrap<\/code>\uff1a\u6362\u884c\uff0c\u5141\u8bb8\u9879\u6362\u5230\u4e0b\u4e00\u884c\u3002<\/li>\n\n\n\n<li><code>wrap-reverse<\/code>\uff1a\u6362\u884c\u5e76\u53cd\u5411\u6392\u5217\u9879\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u5141\u8bb8\u6362\u884c<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n  flex-wrap: wrap; \/* \u5141\u8bb8\u6362\u884c *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u5bf9\u9f50\u9879\u76ee (justify-content)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>justify-content<\/code> \u7528\u4e8e\u63a7\u5236 flex \u9879\u6cbf\u4e3b\u8f74\uff08\u884c\u65b9\u5411\uff09\u7684\u5bf9\u9f50\u65b9\u5f0f\uff0c\u5e38\u89c1\u7684\u503c\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>flex-start<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u9879\u76ee\u5728\u5bb9\u5668\u7684\u8d77\u59cb\u4f4d\u7f6e\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>flex-end<\/code>\uff1a\u9879\u76ee\u5728\u5bb9\u5668\u7684\u7ed3\u675f\u4f4d\u7f6e\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>center<\/code>\uff1a\u9879\u76ee\u5728\u5bb9\u5668\u5185\u5c45\u4e2d\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>space-between<\/code>\uff1a\u9879\u76ee\u4e4b\u95f4\u6709\u5747\u7b49\u7684\u7a7a\u95f4\uff0c\u9996\u5c3e\u65e0\u7a7a\u9699\u3002<\/li>\n\n\n\n<li><code>space-around<\/code>\uff1a\u9879\u76ee\u4e4b\u95f4\u6709\u5747\u7b49\u7684\u7a7a\u95f4\uff0c\u9996\u5c3e\u6709\u4e00\u534a\u7684\u7a7a\u9699\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u6c34\u5e73\u5c45\u4e2d\u5bf9\u9f50\u9879\u76ee<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n  justify-content: center; \/* \u6c34\u5e73\u5c45\u4e2d *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u5782\u76f4\u5bf9\u9f50 (align-items)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>align-items<\/code> \u7528\u4e8e\u63a7\u5236 flex \u9879\u6cbf\u4ea4\u53c9\u8f74\uff08\u5782\u76f4\u65b9\u5411\uff09\u7684\u5bf9\u9f50\u65b9\u5f0f\uff0c\u5e38\u89c1\u7684\u503c\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>stretch<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u9879\u76ee\u62c9\u4f38\u586b\u5145\u5bb9\u5668\u3002<\/li>\n\n\n\n<li><code>flex-start<\/code>\uff1a\u9879\u76ee\u4e0e\u5bb9\u5668\u7684\u9876\u90e8\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>flex-end<\/code>\uff1a\u9879\u76ee\u4e0e\u5bb9\u5668\u7684\u5e95\u90e8\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>center<\/code>\uff1a\u9879\u76ee\u5782\u76f4\u5c45\u4e2d\u5bf9\u9f50\u3002<\/li>\n\n\n\n<li><code>baseline<\/code>\uff1a\u9879\u76ee\u7684\u57fa\u7ebf\u5bf9\u9f50\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u5782\u76f4\u5c45\u4e2d\u5bf9\u9f50\u9879\u76ee<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n  align-items: center; \/* \u5782\u76f4\u5c45\u4e2d *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. <strong>\u5355\u4e2a\u9879\u76ee\u7684\u5bf9\u9f50 (align-self)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>align-self<\/code> \u7528\u4e8e\u63a7\u5236\u5355\u4e2a flex \u9879\u5728\u4ea4\u53c9\u8f74\u4e0a\u7684\u5bf9\u9f50\u65b9\u5f0f\u3002\u5b83\u7684\u503c\u53ef\u4ee5\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>auto<\/code>\uff1a\u9ed8\u8ba4\u503c\uff0c\u7ee7\u627f\u81ea <code>align-items<\/code> \u7684\u503c\u3002<\/li>\n\n\n\n<li><code>flex-start<\/code>\u3001<code>flex-end<\/code>\u3001<code>center<\/code>\u3001<code>stretch<\/code>\u3001<code>baseline<\/code>\uff08\u4e0e <code>align-items<\/code> \u76f8\u540c\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u5355\u72ec\u8bbe\u7f6e\u4e00\u4e2a\u9879\u76ee\u7684\u5bf9\u9f50\u65b9\u5f0f<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.item {\n  align-self: flex-end; \/* \u8ba9\u8be5\u9879\u4e0e\u5bb9\u5668\u5e95\u90e8\u5bf9\u9f50 *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">7. <strong>\u5f39\u6027\u9879\u76ee\u7684\u4f38\u7f29 (flex-grow, flex-shrink, flex-basis)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>flex-grow<\/code>\uff1a\u6307\u5b9a\u9879\u76ee\u7684\u653e\u5927\u6bd4\u4f8b\uff0c\u9ed8\u8ba4\u4e3a <code>0<\/code>\uff0c\u5373\u5982\u679c\u6709\u5269\u4f59\u7a7a\u95f4\uff0c\u9879\u76ee\u4e0d\u4f1a\u653e\u5927\u3002<\/li>\n\n\n\n<li><code>flex-shrink<\/code>\uff1a\u6307\u5b9a\u9879\u76ee\u7684\u7f29\u5c0f\u6bd4\u4f8b\uff0c\u9ed8\u8ba4\u4e3a <code>1<\/code>\uff0c\u5373\u5982\u679c\u7a7a\u95f4\u4e0d\u8db3\uff0c\u9879\u76ee\u4f1a\u7f29\u5c0f\u3002<\/li>\n\n\n\n<li><code>flex-basis<\/code>\uff1a\u6307\u5b9a\u9879\u76ee\u7684\u521d\u59cb\u5927\u5c0f\uff0c\u9ed8\u8ba4\u4e3a <code>auto<\/code>\uff0c\u5373\u6839\u636e\u9879\u76ee\u5185\u5bb9\u51b3\u5b9a\u5927\u5c0f\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u8bbe\u7f6e\u5f39\u6027\u4f38\u7f29<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.item {\n  flex-grow: 1; \/* \u9879\u76ee\u5360\u636e\u5269\u4f59\u7a7a\u95f4 *\/\n  flex-shrink: 1; \/* \u9879\u76ee\u7f29\u5c0f\u65f6\u6309\u6bd4\u4f8b\u7f29\u5c0f *\/\n  flex-basis: 100px; \/* \u521d\u59cb\u5927\u5c0f\u4e3a100px *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">8. <strong>\u7b80\u5199\u5c5e\u6027 (flex)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>flex<\/code> \u5c5e\u6027\u662f <code>flex-grow<\/code>\u3001<code>flex-shrink<\/code> \u548c <code>flex-basis<\/code> \u7684\u7b80\u5199\u3002\u683c\u5f0f\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>flex: &lt;flex-grow&gt; &lt;flex-shrink&gt; &lt;flex-basis&gt;;<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u4f7f\u7528\u7b80\u5199\u5c5e\u6027<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.item {\n  flex: 1 1 100px; \/* \u7b49\u4ef7\u4e8e flex-grow: 1; flex-shrink: 1; flex-basis: 100px; *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">9. <strong>\u6392\u5e8f (order)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>order<\/code> \u5c5e\u6027\u63a7\u5236\u9879\u76ee\u7684\u987a\u5e8f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u9879\u7684 <code>order<\/code> \u503c\u4e3a <code>0<\/code>\u3002\u901a\u8fc7\u8bbe\u7f6e\u4e0d\u540c\u7684 <code>order<\/code> \u503c\uff0c\u53ef\u4ee5\u6539\u53d8\u9879\u76ee\u7684\u663e\u793a\u987a\u5e8f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u66f4\u6539\u9879\u76ee\u987a\u5e8f<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>.item1 {\n  order: 2; \/* \u6392\u5728\u7b2c\u4e09\u4f4d *\/\n}\n\n.item2 {\n  order: 1; \/* \u6392\u5728\u7b2c\u4e8c\u4f4d *\/\n}\n\n.item3 {\n  order: 0; \/* \u6392\u5728\u7b2c\u4e00\u4f4d *\/\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">10. <strong>Flexbox \u5e03\u5c40\u7684\u5b9e\u7528\u793a\u4f8b<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a\u6c34\u5e73\u5c45\u4e2d\u7684 Flexbox \u5e03\u5c40<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;div class=\"container\"&gt;\n  &lt;div class=\"item\"&gt;Item 1&lt;\/div&gt;\n  &lt;div class=\"item\"&gt;Item 2&lt;\/div&gt;\n  &lt;div class=\"item\"&gt;Item 3&lt;\/div&gt;\n&lt;\/div&gt;<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>.container {\n  display: flex;\n  justify-content: center; \/* \u6c34\u5e73\u5c45\u4e2d *\/\n  align-items: center; \/* \u5782\u76f4\u5c45\u4e2d *\/\n  height: 100vh; \/* \u8bbe\u7f6e\u5bb9\u5668\u9ad8\u5ea6\u4e3a\u89c6\u53e3\u9ad8\u5ea6 *\/\n}\n\n.item {\n  margin: 10px;\n  padding: 20px;\n  background-color: #3498db;\n  color: white;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4e09\u4e2a\u9879\u4f1a\u88ab\u6c34\u5e73\u548c\u5782\u76f4\u5c45\u4e2d\u5bf9\u9f50\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Flexbox \u5e03\u5c40\u4e3a\u7f51\u9875\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177\uff0c\u5b83\u4f7f\u5f97\u5143\u7d20\u7684\u5bf9\u9f50\u3001\u5206\u5e03\u548c\u5c3a\u5bf8\u63a7\u5236\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002\u638c\u63e1\u4e86 Flexbox \u7684\u57fa\u672c\u5c5e\u6027\uff0c\u4f60\u5c31\u80fd\u591f\u8f7b\u677e\u5730\u5b9e\u73b0\u5404\u79cd\u54cd\u5e94\u5f0f\u3001\u52a8\u6001\u5e03\u5c40\u3002\u901a\u8fc7\u7ec4\u5408 <code>flex-direction<\/code>\u3001<code>justify-content<\/code>\u3001<code>align-items<\/code>\u3001<code>flex-grow<\/code> \u7b49\u5c5e\u6027\uff0c\u4f60\u53ef\u4ee5\u4e3a\u9875\u9762\u4e2d\u7684\u5143\u7d20\u521b\u5efa\u5404\u79cd\u590d\u6742\u7684\u5e03\u5c40\u7ed3\u6784\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CSS3 \u5f39\u6027\u76d2\u5b50\uff08Flexbox\uff09\u662f\u4e00\u79cd\u5e03\u5c40\u6a21\u578b\uff0c\u5b83\u5141\u8bb8\u5728\u5bb9\u5668\u5185\u7684\u5143\u7d20\u4e4b\u95f4\u8fdb\u884c\u52a8\u6001\u5e03\u5c40\uff0c\u5e76\u80fd\u8f7b\u677e\u5730\u63a7\u5236\u5143\u7d20\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-1853","post","type-post","status-publish","format-standard","hentry","category-css"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=1853"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1853\/revisions"}],"predecessor-version":[{"id":1854,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1853\/revisions\/1854"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=1853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=1853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=1853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}