{"id":29648,"date":"2024-11-25T13:51:32","date_gmt":"2024-11-25T05:51:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/29648\/"},"modified":"2024-11-25T13:51:32","modified_gmt":"2024-11-25T05:51:32","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8fflex%e5%b8%83%e5%b1%80","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/29648\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40"},"content":{"rendered":"<p>\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u65b9\u5f0f\u91c7\u7528\u7684\u662f\u3002<br \/>flex\u5e03\u5c40\uff0c\u662f\u57282009\u5e74\u63d0\u51fa\u7684\u4e00\u79cd\u65b0\u7684\u65b9\u6848\uff0c\u53ef\u4ee5\u7b80\u4fbf\uff0c\u5b8c\u6574\uff0c\u54cd\u5e94\u5f0f\u7684\u5b9e\u73b0\u5404\u79cd\u9875\u9762\u5e03\u5c40\u3002<br \/>flex\u5e03\u5c40\u63d0\u4f9b\u4e86\u5143\u7d20\u5728\u5bb9\u5668\u4e2d\u7684\u5bf9\u9f50\uff0c\u65b9\u5411\u4ee5\u53ca\u987a\u5e8f\uff0c\u751a\u81f3\u4ed6\u4eec\u53ef\u4ee5\u662f\u52a8\u6001\u7684\u6216\u8005\u4e0d\u786e\u5b9a\u7684\u5927\u5c0f\u7684\u3002<br \/>flex\u5e03\u5c40\u7684\u4e3b\u8981\u7279\u5f81\u662f\u80fd\u591f\u8c03\u6574\u5176\u5b50\u5143\u7d20\u5728\u4e0d\u540c\u7684\u5c4f\u5e55\u5927\u5c0f\u4e2d\u80fd\u591f\u7528\u6700\u9002\u5408\u7684\u65b9\u6cd5\u586b\u5145\u5408\u9002\u7684\u7a7a\u95f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/8ed4fb708a68f7c92fc4c4a9bb0f71fa-0.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe\" \/><\/p>\n<p>flex\u5e03\u5c40<\/p>\n<p>Flex\u5e03\u5c40\u7684\u7279\u70b9:<\/p>\n<ul>\n<li>\n<p>\u4efb\u610f\u65b9\u5411\u7684\u4f38\u7f29\uff0c\u5411\u5de6\uff0c\u5411\u53f3\uff0c\u5411\u4e0b\uff0c\u5411\u4e0a<\/p>\n<\/li>\n<li>\n<p>\u5728\u6837\u5f0f\u5c42\u53ef\u4ee5\u8c03\u6362\u548c\u91cd\u6392\u987a\u5e8f<\/p>\n<\/li>\n<li>\n<p>\u4e3b\u8f74\u548c\u4fa7\u8f74\u65b9\u4fbf\u914d\u7f6e<\/p>\n<\/li>\n<li>\n<p>\u5b50\u5143\u7d20\u7684\u7a7a\u95f4\u62c9\u4f38\u548c\u586b\u5145<\/p>\n<\/li>\n<li>\n<p>\u6cbf\u7740\u5bb9\u5668\u5bf9\u9f50<\/p>\n<\/li>\n<\/ul>\n<p>\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u4e86Flex\u5e03\u5c40,\u7b80\u5355\u4ecb\u7ecd\u4e0bFlex\u5e03\u5c40\u5728\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n<h2>\u4f38\u7f29\u5bb9\u5668<\/h2>\n<p>\u8bbe\u6709:flex\u6216\u8005display:block\u7684\u5143\u7d20\u5c31\u662f\u4e00\u4e2aflex container(\u4f38\u7f29\u5bb9\u5668)\uff0c\u91cc\u9762\u7684\u5b50\u5143\u7d20\u79f0\u4e3aflex item(\u4f38\u7f29\u9879\u76ee)\uff0cflex container\u4e2d\u5b50\u5143\u7d20\u90fd\u662f\u4f7f\u7528Flex\u5e03\u5c40\u6392\u7248\u3002<\/p>\n<ul>\n<li>\n<p>display:block \u6307\u5b9a\u4e3a\u5757\u5185\u5bb9\u5668\u6a21\u5f0f\uff0c\u603b\u662f\u4f7f\u7528\u65b0\u884c\u5f00\u59cb\u663e\u793a\uff0c\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u7684\u5bb9\u5668(view,scroll-view\u548cswiper)\u9ed8\u8ba4\u90fd\u662fdispaly:block\u3002<\/p>\n<\/li>\n<li>\n<p>display:flex:\u6307\u5b9a\u4e3a\u884c\u5185\u5bb9\u5668\u6a21\u5f0f\uff0c\u5728\u4e00\u884c\u5185\u663e\u793a\u5b50\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528flex-wrap\u6307\u5b9a\u5176\u662f\u5426\u6362\u884c\uff0cflex-wrap\u6709\u4e09\u4e2a\u503c:<em>nowrap(\u4e0d\u6362\u884c)<\/em>,<em>wrap(\u6362\u884c)<\/em>,<em>wrap-reverse(\u6362\u884c\u7b2c\u4e00\u884c\u5728\u4e0b\u9762)<\/em><br \/>\u4f7f\u7528display:block(\u9ed8\u8ba4\u503c)\u7684\u4ee3\u7801:<\/p>\n<pre>&lt;view class=\"flex-row\" style=\"display: block;\"&gt;\r\n      &lt;view class=\"flex-view-item\"&gt;1&lt;\/view&gt;\r\n      &lt;view class=\"flex-view-item\"&gt;2&lt;\/view&gt;\r\n      &lt;view class=\"flex-view-item\"&gt;3&lt;\/view&gt;\r\n  &lt;\/view&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u663e\u793a\u6548\u679c:<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/8ed4fb708a68f7c92fc4c4a9bb0f71fa-1.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe1\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe1\" \/><\/p>\n<p>block<\/p>\n<p>\u6539\u6362\u6210display:flex\u7684\u663e\u793a\u6548\u679c:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/e4c5cbb990b300227f92bbd08fb3fb06-2.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe2\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe2\" \/><\/p>\n<p>flex<\/p>\n<p>\u53ef\u4ee5\u4ece\u6548\u679c\u56fe\u770b\u5230block\u548cflex\u7684\u533a\u522b\uff0c\u5b50\u5143\u7d20view\u662f\u5728\u6362\u884c\u663e\u793a(block)\u8fd8\u662f\u884c\u5185\u663e\u793a(flex)\u3002<\/p>\n<h2>\u4e3b\u8f74\u548c\u4fa7\u8f74<\/h2>\n<p>Flex\u5e03\u5c40\u7684\u4f38\u7f29\u5bb9\u5668\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u65b9\u5411\u8fdb\u884c\u5e03\u5c40\u3002<br \/>\u5bb9\u5668\u9ed8\u8ba4\u6709\u4e24\u4e2a\u8f74\uff1a<em>\u4e3b\u8f74( axis)<\/em>\u548c<em>\u4fa7\u8f74(cross axis)<\/em>\u3002<br \/>\u4e3b\u8f74\u7684\u5f00\u59cb\u4f4d\u7f6e\u4e3a\u4e3b\u8f74\u8d77\u70b9(main start)\uff0c\u4e3b\u8f74\u7684\u7ed3\u675f\u4f4d\u7f6e\u4e3a\u4e3b\u8f74\u7ec8\u70b9(main ),\u800c\u4e3b\u8f74\u7684\u957f\u5ea6\u4e3a\u4e3b\u8f74\u957f\u5ea6(main size)\u3002<br \/>\u540c\u7406\u4fa7\u8f74\u7684\u8d77\u70b9\u4e3a\u4fa7\u8f74\u8d77\u70b9(cross start),\u7ed3\u675f\u4f4d\u7f6e\u4e3a\u4fa7\u8f74\u7ec8\u70b9(cross end),\u957f\u5ea6\u4e3a\u4fa7\u8f74\u957f\u5ea6(cross size)\u3002\u8be6\u60c5\u89c1\u4e0b\u56fe:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/e4c5cbb990b300227f92bbd08fb3fb06-3.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe3\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe3\" \/><\/p>\n<p>Flex-<\/p>\n<p>\u6ce8\u610f\uff0c\u4e3b\u8f74\u5e76\u4e0d\u662f\u4e00\u5b9a\u662f\u4ece\u5de6\u5230\u53f3\u7684\uff0c\u540c\u7406\u4fa7\u8f74\u4e5f\u4e0d\u4e00\u5b9a\u662f\u4ece\u4e0a\u5230\u4e0b\uff0c\u4e3b\u8f74\u7684\u65b9\u5411\u4f7f\u7528flex-direction\u5c5e\u6027\u63a7\u5236,\u5b83\u67094\u4e2a\u53ef\u9009\u503c:<\/p>\n<ul>\n<li>\n<p>row :\u4ece\u5de6\u5230\u53f3\u7684\u6c34\u5e73\u65b9\u5411\u4e3a\u4e3b\u8f74<\/p>\n<\/li>\n<li>\n<p>row-reverse\uff1a\u4ece\u53f3\u5230\u5de6\u7684\u6c34\u5e73\u65b9\u5411\u4e3a\u4e3b\u8f74<\/p>\n<\/li>\n<li>\n<p>column:\u4ece\u4e0a\u5230\u4e0b\u7684\u5782\u76f4\u65b9\u5411\u4e3a\u4e3b\u8f74<\/p>\n<\/li>\n<li>\n<p>column-reverse\u4ece\u4e0b\u5230\u4e0a\u7684\u5782\u76f4\u65b9\u5411\u4e3a\u4e3b\u8f74<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u6c34\u5e73\u65b9\u5411\u4e3a\u4e3b\u8f74\uff0c\u90a3\u4e2a\u5782\u76f4\u65b9\u5411\u5c31\u662f\u4fa7\u8f74\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<br \/>\u56db\u79cd\u4e3b\u8f74\u65b9\u5411\u8bbe\u7f6e\u7684\u6548\u679c\u56fe:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/e4c5cbb990b300227f92bbd08fb3fb06-4.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe4\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe4\" \/><\/p>\n<p>\u793a\u4f8b\u56fe<\/p>\n<p>\u56fe\u4e2d\u7684\u5b9e\u4f8b\u5c55\u793a\u4e86\u4f7f\u7528\u4e86\u4e0d\u540c\u7684flex-direction\u503c\u6392\u5217\u65b9\u5411\u7684\u533a\u522b\u3002<br \/>\u5b9e\u4f8b\u4ee3\u7801:<\/p>\n<pre>&lt;view &gt;\r\n    &lt;view class=\"flex-row\" style=\"display: flex;flex-direction: row;\"&gt;\r\n        &lt;view class=\"flex-view-item\"&gt;1&lt;\/view&gt;\r\n        &lt;view class=\"flex-view-item\"&gt;2&lt;\/view&gt;\r\n        &lt;view class=\"flex-view-item\"&gt;3&lt;\/view&gt;\r\n    &lt;\/view&gt;\r\n    &lt;view class=\"flex-column\" style=\"display:flex;flex-direction: column;\" &gt;\r\n        &lt;view class=\"flex-view-item\"&gt;c1&lt;\/view&gt;\r\n        &lt;view class=\"flex-view-item\"&gt;c2&lt;\/view&gt;\r\n        &lt;view class=\"flex-view-item\"&gt;c3&lt;\/view&gt;\r\n    &lt;\/view&gt;\r\n&lt;\/view&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd0\u884c\u6548\u679c\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/33921492042fbee7a56339602aae4f56-5.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe5\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe5\" \/><\/p>\n<p>flex-direction<\/p>\n<h2>\u5bf9\u9f50\u65b9\u5f0f<\/h2>\n<p>\u5b50\u5143\u7d20\u6709\u4e24\u79cd\u5bf9\u9f50\u65b9\u5f0f\uff1a<\/p>\n<blockquote><p>\n  justify-conent \u5b9a\u4e49\u5b50\u5143\u7d20\u5728\u4e3b\u8f74\u4e0a\u9762\u7684\u5bf9\u9f50\u65b9\u5f0falign-items \u5b9a\u4e49\u5b50\u5143\u7d20\u5728\u4fa7\u8f74\u4e0a\u5bf9\u9f50\u7684\u65b9\u5f0f\n<\/p><\/blockquote>\n<p>justify-content\u67095\u4e2a\u53ef\u9009\u7684\u5bf9\u9f50\u65b9\u5f0f:<\/p>\n<ul>\n<li>\n<p>flex-start \u4e3b\u8f74\u8d77\u70b9\u5bf9\u9f50(\u9ed8\u8ba4\u503c)<\/p>\n<\/li>\n<li>\n<p>flex-end &nbsp;\u4e3b\u8f74\u7ed3\u675f\u70b9\u5bf9\u9f50<\/p>\n<\/li>\n<li>\n<p>center \u5728\u4e3b\u8f74\u4e2d\u5c45\u4e2d\u5bf9\u9f50<\/p>\n<\/li>\n<li>\n<p>space-between \u4e24\u7aef\u5bf9\u9f50\uff0c\u9664\u4e86\u4e24\u7aef\u7684\u5b50\u5143\u7d20\u5206\u522b\u9760\u5411\u4e24\u7aef\u7684\u5bb9\u5668\u4e4b\u5916\uff0c\u5176\u4ed6\u5b50\u5143\u7d20\u4e4b\u95f4\u7684\u95f4\u9694\u90fd\u76f8\u7b49<\/p>\n<\/li>\n<li>\n<p>space-around \u6bcf\u4e2a\u5b50\u5143\u7d20\u4e4b\u95f4\u7684\u8ddd\u79bb\u76f8\u7b49\uff0c\u4e24\u7aef\u7684\u5b50\u5143\u7d20\u8ddd\u79bb\u5bb9\u5668\u7684\u8ddd\u79bb\u4e5f\u548c\u5b50\u5143\u7d20\u4e4b\u95f4\u7684\u8ddd\u79bb\u76f8\u540c\u3002<br \/>justify-content\u7684\u5bf9\u9f50\u65b9\u5f0f\u548c\u4e3b\u8f74\u7684\u65b9\u5411\u6709\u5173\uff0c\u4e0b\u56fe\u4ee5flex-direction\u4e3arow\uff0c\u4e3b\u8f74\u65b9\u5f0f\u662f\u4ece\u5de6\u5230\u53f3,\u63cf\u8ff0tify-content5\u4e2a\u503c\u7684\u663e\u793a\u6548\u679c:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/33921492042fbee7a56339602aae4f56-6.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe6\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe6\" \/><\/p>\n<p>justify-content<\/p>\n<\/li>\n<\/ul>\n<p>align-items\u8868\u793a\u4fa7\u8f74\u4e0a\u7684\u5bf9\u9f50\u65b9\u5f0f:<\/p>\n<ul>\n<li>\n<p>stretch &nbsp;\u586b\u5145\u6574\u4e2a\u5bb9\u5668(\u9ed8\u8ba4\u503c)<\/p>\n<\/li>\n<li>\n<p>flex-start \u4fa7\u8f74\u7684\u8d77\u70b9\u5bf9\u9f50<\/p>\n<\/li>\n<li>\n<p>flex-end \u4fa7\u8f74\u7684\u7ec8\u70b9\u5bf9\u9f50<\/p>\n<\/li>\n<li>\n<p>center &nbsp;\u5728\u4fa7\u8f74\u4e2d\u5c45\u4e2d\u5bf9\u9f50<\/p>\n<\/li>\n<li>\n<p>baseline \u4ee5\u5b50\u5143\u7d20\u7684\u7b2c\u4e00\u884c\u6587\u5b57\u5bf9\u9f50<\/p>\n<\/li>\n<\/ul>\n<p>align-tiems\u8bbe\u7f6e\u7684\u5bf9\u9f50\u65b9\u5f0f\uff0c\u548c\u4fa7\u8f74\u7684\u65b9\u5411\u6709\u5173\uff0c\u4e0b\u56fe\u4ee5flex-direction\u4e3arow,\u4fa7\u8f74\u65b9\u5411\u662f\u4ece\u4e0a\u5230\u4e0b,\u63cf\u8ff0align-items\u76845\u4e2a\u503c\u663e\u793a\u6548\u679c:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/164\/33921492042fbee7a56339602aae4f56-7.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe7\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8fFlex\u5e03\u5c40\u63d2\u56fe7\" 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