{"id":5542,"date":"2016-08-07T11:00:10","date_gmt":"2016-08-07T03:00:10","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5542"},"modified":"2019-03-10T17:38:06","modified_gmt":"2019-03-10T09:38:06","slug":"regular-expression-in-css-selector","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2016\/08\/regular-expression-in-css-selector\/","title":{"rendered":"\u7b80\u5355\u804a\u804aCSS\u9009\u62e9\u5668\u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5542\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=5542<\/a><br \/>\n\u672c\u6587\u5168\u6587\u8f6c\u8f7d\u9700\u8d2d\u4e70\u7248\u6743(500\u00a5)\uff0c\u6458\u8981\u5f15\u6d41\u5219\u514d\u8d39\uff0c\u5177\u4f53<a href=\"http:\/\/www.zhangxinxu.com\/sp\/copyright.html\" target=\"_blank\">\u53c2\u89c1\u8fd9\u91cc<\/a><\/p>\n<h3>\u4e00\u3001\u627e\u5f20\u5934\u56fe\u538b\u4e2a\u9635<\/h3>\n<p><img src='http:\/\/image.zhangxinxu.com\/image\/blog\/201608\/08-cover-s.jpg' width=\"500\" height=\"226\" alt=\"\u4eca\u65e5\u9493\u9c7c\u7167\u7247\" class=\"alignnone\" \/><\/p>\n<p>\u4e2d\u5348\u9493\u9c7c\u9493\u4f4d\u89c6\u89d2\u56fe\u4e00\u5f20\u3002\u4e0b\u98ce\u53e3\uff0c\u7267\u8349\u8fb9\uff0c\u7ecf\u9a8c\u544a\u8bc9\u6211\uff0c\u5927\u9c7c\u4f1a\u5f88\u591a\u3002<\/p>\n<h3>\u4e8c\u3001\u6ca1\u9519\uff0cCSS\u4e5f\u6709\u6b63\u5219<\/h3>\n<p>CSS\u88c5\u903c\u4e24\u5229\u5668\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=2427\">\u77e9\u9635<\/a>\u548c\u6b63\u5219\u3002<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/img.t.sinajs.cn\/t4\/appstyle\/expression\/ext\/normal\/34\/xiaoku_thumb.gif\" width=\"22\" height=\"22\" class=\"alignnone\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201608\/biwang.jpg\" width=\"252\" height=\"157\" alt=\"\u903c\u738b\u5742\u672c\" class=\"alignnone\" \/><\/p>\n<p>\u5176\u5b9e\u5462\uff0c\u6211\u4eec\u4e5f\u4e0d\u5fc5\u60ca\u8bb6\uff0cCSS\u6bd5\u7adf\u4e5f\u662f\u4e00\u95e8\u8bed\u8a00\uff0c\u800c\u4e14\u6b63\u5219\u672c\u6765\u5c31\u662f\u6709\u5229\u4e8e\u67d0\u4e2a\u5177\u4f53\u8bed\u8a00\u4e4b\u5916\u7684\u4e1c\u897f\u3002<\/p>\n<h3>\u4e09\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u4e00\u4e9b\u901a\u7528\u89c4\u5219<\/h3>\n<p>\u65e0\u8bba\u4ec0\u4e48\u8bed\u8a00\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u89c4\u5219\u90fd\u662f\u901a\u7528\u7684\uff0c\u5dee\u522b\u53ef\u80fd\u5728\u4e8e\u4e66\u5199\u7684\u5f62\u5f0f\u4e0a\u3002<\/p>\n<p>\u6b63\u5219\u662f\u4e2a\u5f88\u6df1\u7684\u8bdd\u9898\uff0c\u771f\u8981\u8bf4\u5f00\uff0c\u53ef\u4ee5\u5199\u4e00\u672c\u539a\u539a\u7684\u4e66\uff01\u2026\u2026\u4e0d\u8981\u770b\u6211\uff0c\u6211\u80af\u5b9a\u5199\u4e0d\u6765\uff0c\u6211\u53ea\u4f1a\u76ae\u6bdb\u3002<\/p>\n<p>\u5176\u4e2d\uff0c\u6709\u4e00\u4e9b\u5173\u952e\u7684\u5b57\u7b26\uff0c\u6709\u7740\u7279\u5b9a\u7684\u542b\u4e49\uff0c\u4ee3\u8868\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u4e16\u754c\u7684\u89c4\u5219\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u5b57\u7b26<code>^<\/code>\u8868\u793a\u5b57\u7b26\u4e32\u5f00\u59cb\u4f4d\u7f6e\u5339\u914d\uff1b<\/li>\n<li>\u5b57\u7b26<code>$<\/code>\u8868\u793a\u5b57\u7b26\u4e32\u7ed3\u675f\u4f4d\u7f6e\u5339\u914d\uff1b<\/li>\n<li>\u5b57\u7b26<code>*<\/code>\u8868\u793a\u5b57\u7b26\u4e32\u4efb\u610f\u4f4d\u7f6e\u5339\u914d\uff1b<\/li>\n<li style=\"margin-top:10px;\">\u5b57\u7b26<code>i<\/code>\u8868\u793a\u5b57\u7b26\u4e32\u5339\u914d\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff1b<\/li>\n<li>\u5b57\u7b26<code>g<\/code>\u8868\u793a\u5b57\u7b26\u4e32\u5168\u5c40\u5339\u914d\uff1b<\/li>\n<\/ul>\n<p>\u7b49\u7b49\u3002<\/p>\n<p>\u8fd9\u4e9b\u89c4\u5219\u5728CSS\u4e16\u754c\u4e5f\u662f\u901a\u7528\u7684\u3002<\/p>\n<h3>\u56db\u3001CSS\u5c5e\u6027\u9009\u62e9\u5668\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f<\/h3>\n<p>CSS\u5c5e\u6027\u9009\u62e9\u5668\u7684\u53d1\u5c55\u76ee\u524d\u5206\u4e3a3\u4e2a\u9636\u6bb5\uff1a<\/p>\n<ol>\n<li><strong>CSS2.1\u5c5e\u6027\u9009\u62e9\u5668<\/strong><br \/>\n\u76f4\u63a5\u5339\u914d\uff1a<code>[attr]<\/code>, <code>[attr=\"val\"]<\/code>, <code>[attr~=\"val\"]<\/code>, <code>[attr|=\"bar\"]<\/code><\/li>\n<li><strong>CSS3\u5c5e\u6027\u9009\u62e9\u5668<\/strong><br \/>\n\u6b63\u5219\u5339\u914d\uff1a<code>[foo^=\"bar\"]<\/code>, <code>[foo$=\"bar\"]<\/code>, <code>[foo*=\"bar\"]<\/code><\/li>\n<li><strong>CSS4\u5c5e\u6027\u9009\u62e9\u5668<\/strong><br \/>\n\u5ffd\u7565\u5927\u5c0f\u5199\u5339\u914d\uff1a<code>[attr=\"val\" i]<\/code><\/li>\n<\/ol>\n<p>\u5176\u4e2d\uff0c\u540e\u9762\u4e24\u4e2a\u9636\u6bb5\u90fd\u5c5e\u4e8e\u6b63\u5219\u5339\u914d\u9636\u6bb5\uff0c\u968f\u7740CSS\u7684\u53d1\u5c55\uff0c\u66f4\u590d\u6742\u7684\u6b63\u5219\u5339\u914d\u5e94\u8be5\u4f1a\u51fa\u73b0\uff0c\u6211\u4eec\u53ef\u4ee5\u62ed\u76ee\u4ee5\u5f85\u3002<\/p>\n<p>\u90a3\u8fd9\u4e48\u591a\u5c5e\u6027\u5339\u914d\u5199\u6cd5\u5404\u81ea\u4ee3\u8868\u7684\u542b\u4e49\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n<p><strong>\u5982\u4e0b<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>[attr]<\/strong><br \/>\n\u53ea\u8981\u5143\u7d20\u6709<code>attr<\/code>\u8fd9\u4e2a\u5c5e\u6027\u5c31\u53ef\u4ee5\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<\/li>\n<li><strong>[attr=&#8221;val&#8221;]<\/strong><br \/>\n\u5143\u7d20\u7684\u5c5e\u6027\u540d\u662f<code>'attr'<\/code>\u503c\u5fc5\u987b\u662f<code>'val'<\/code>\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<\/li>\n<li><strong>[attr~=&#8221;val&#8221;]<\/strong><br \/>\n<code>'attr'<\/code>\u503c\u9700\u542b\u6709\u5355\u8bcd<code>'val'<\/code>\uff0c\u6ce8\u610f\u8fd9\u91cc\u7684\u63aa\u8f9e\u662f\u201c\u5355\u8bcd\u201d\u800c\u4e0d\u662f\u5b57\u7b26\uff0cCSS\u662f\u8001\u5916\u53d1\u660e\u7684\uff0c\u8001\u5916\u7684\u7684\u6bcd\u8bed\u662fEnglish, English\u7684\u53e5\u5b50\u90fd\u662f\u4e00\u4e2a\u5355\u8bcd+\u7a7a\u683c+\u4e00\u4e2a\u5355\u8bcd\u5b9e\u73b0\u7684\u3002\u56e0\u6b64\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p><del datetime=\"2019-02-17T13:05:21+00:00\">\u5728CSS2.1\u7684\u65f6\u5019\uff0cCSS\u5bf9\u5176\u4ed6\u56fd\u5bb6\u7684\u8bed\u8a00\u7684\u8003\u91cf\u8fd8\u6ca1\u6709\u90a3\u4e48\u6df1\u5165\u3002\u56e0\u6b64\uff0c\u50cf\u8fd9\u91cc\u8fd9\u79cd\u5339\u914d\u201c\u5355\u8bcd\u201d\u7684\u7528\u6cd5\u53ea\u5bf9<a href=\"http:\/\/baike.baidu.com\/view\/15482.htm\" target=\"_blank\">ASCII\u8303\u56f4<\/a>\u7684\u5b57\u7b26\u6709\u7528\u3002\u5bf9\u4e8e\u4e2d\u6587\uff0c\u54ea\u6015\u4f60\u5728\u4e2d\u6587\u4e2d\u95f4\u6253\u4e2a\u7a7a\u683c\uff0c\u5047\u88c5\u6210\u201c\u5355\u8bcd\u201d\uff0c\u4e5f\u662f\u6ca1\u7528\u7684\u3002\u56e0\u6b64\uff1a<\/del><\/p>\n<p><strong>\u66f4\u65b0\u4e8e2019-02-17<\/strong><br \/>\n\u76ee\u524d\u6d4b\u8bd5\u4e0b\u6765\u5404\u5927\u6d4f\u89c8\u5668\u90fd\u5df2\u7ecf\u5b8c\u5168\u652f\u6301\u4e2d\u6587\u4e86\u3002<\/p>\n<div class=\"zxx_code\">\n<pre>[attr~=\"\u6211\"] {}<\/pre>\n<\/div>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"\u6211 \u5e05\"&gt;&lt;\/div&gt;    <img loading=\"lazy\" decoding=\"async\" src=\"\/\/image.zhangxinxu.com\/image\/blog\/201608\/doge-l.gif\" width=\"22\" height=\"22\" align=\"absmiddle\" \/><\/pre>\n<\/div>\n<\/li>\n<li><strong>[attr|=&#8221;bar&#8221;]<\/strong><br \/>\n<code>'attr'<\/code>\u5c5e\u6027\u503c\u5f00\u5934\u5fc5\u987b\u662f<code>bar<\/code>\u7684\u5355\u8bcd\uff0c\u6216\u8005\u5f00\u5934\u662f<code>bar-<\/code>\u3002\u540c\u6837\u7684\uff0c\u662f\u201c\u5355\u8bcd\u201d\uff0c\u4e0d\u662f\u201c\u5b57\u7b26\u201d\uff0c\u56e0\u6b64\u6709\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"bar\"&gt;&lt;\/div&gt;       <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"bar-val\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"barval\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"bar val\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p><del datetime=\"2019-02-17T13:05:21+00:00\">\u540c\u6837\u7684\uff0c\u4e0d\u652f\u6301\u4e2d\u6587\u3002\u8981\u60f3\u652f\u6301\u4e2d\u6587\uff0c\u8bf7\u4f7f\u7528CSS3\u5c5e\u6027\u9009\u62e9\u5668\u3002<\/del><\/p>\n<p><strong>\u66f4\u65b0\u4e8e2019-02-17<\/strong><br \/>\n\u76ee\u524d\u6d4b\u8bd5\u4e0b\u6765\u5404\u5927\u6d4f\u89c8\u5668\u90fd\u5df2\u7ecf\u5b8c\u5168\u652f\u6301\u4e2d\u6587\u4e86\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0aCSS2.1\u7684\u51e0\u4e2a\u5c5e\u6027\u9009\u62e9\u5668\u4eceIE7\u6d4f\u89c8\u5668\u5f00\u59cb\u652f\u6301\u3002\u4f46\u662f\uff0cIE7\u6d4f\u89c8\u5668\u5e76\u4e0d\u662f\u4e25\u683c\u652f\u6301\u7684\uff0c\u6211\u4e4b\u524d\u7279\u522b\u5199\u8fc7\u4e00\u7bc7\u6587\u7ae0\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2015\/06\/ie7-attribute-css-selector\/\">IE7\u6d4f\u89c8\u5668\u4e0bCSS\u5c5e\u6027\u9009\u62e9\u5668\u4e8c\u4e09\u4e8b<\/a>\u201d\u4ecb\u7ecd\u8fc7\uff0c\u5305\u62ec\u67d0\u4e9b\u5c5e\u6027\u540d\u4e0d\u652f\u6301\uff0c\u67d0\u4e9b\u5c5e\u6027\u9009\u62e9\u5668\u9700\u8981\u6807\u7b7e\uff0c\u4ee5\u53caIE7\u4e0b\u5c5e\u6027\u540d\u9700\u8981\u533a\u5206\u5927\u5c0f\u5199\u7b49\u3002<\/p>\n<p>\u6211\u4eec<strong>\u7ee7\u7eed<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>[attr=^&#8221;val&#8221;]<\/strong><br \/>\n\u503c\u5f00\u5934\u4e09\u4e2a\u5b57\u7b26\u9700\u8981\u662f<code>val<\/code>\uff0c\u4e8e\u662f\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p>\u53ef\u5bf9\u6bd4\u4e0a\u9762\u7684<code>[attr|=\"bar\"]<\/code>\u611f\u53d7\u4e0b\u201c\u5355\u8bcd\u201d\u548c\u201c\u5b57\u7b26\u201d\u7684\u533a\u522b\u3002\n<\/li>\n<li><strong>[attr$=&#8221;val&#8221;]<\/strong><br \/>\n\u5c5e\u6027\u503c\u6700\u540e\u4e09\u4e2a\u5b57\u7b26\u9700\u8981\u662f<code>val<\/code>\uff0c\u4e8e\u662f\uff0c\u56e0\u6b64\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<\/li>\n<li><strong>[attr*=&#8221;val&#8221;]<\/strong><br \/>\n\u5c5e\u6027\u503c\u4efb\u610f\u4f4d\u7f6e\u5305\u542b<code>val<\/code>\u8fd9\u4e09\u4e2a\u5b57\u7b26\u5c31\u53ef\u4ee5\uff0c\u56e0\u6b64\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"val\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p>\u5168\u90e8\u7b11\u5f00\u4e86\u8138\uff01<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a3\u4e2a\u5c5e\u6027\u9009\u62e9\u5668\u96b6\u5c5e\u4e8eCSS3\uff0c\u4f46\u662f\u5f88\u795e\u5947\u7684\u662f\uff0cIE7\u6d4f\u89c8\u5668\u4e5f\u662f\u652f\u6301\u7684\u3002\u5c31\u597d\u50cfIE8\u6d4f\u89c8\u5668\u652f\u6301CSS3\u7684<code>box-sizing<\/code>\u4e00\u6837\uff0c\u8fd9\u79cd\u611f\u89c9\u5c31\u50cf\u662f\uff0c\u5e73\u65f6\u90fd\u800338\u5206\u7684\u5c0f\u660e\uff0c\u7a81\u7136\u8003\u4e8661\u5206\uff0c\u8db3\u591f\u60ca\u559c\u3002<\/p>\n<p>\u5177\u6709\u6b63\u5219\u7279\u6027\u7684\u5c5e\u6027\u9009\u62e9\u5668\u9664\u4e86\u901a\u5e38\u7684CSS\u5339\u914d\u4f5c\u7528\u5916\uff0c\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u641c\u7d22\u529f\u80fd\uff0c\u56e0\u4e3a\u6b63\u5219\u672c\u8eab\u5c31\u662f\u4e00\u79cd\u52a8\u6001\u7279\u6027\u3002\u6211\u4e4b\u524d\u6709\u5199\u8fc7\u6587\u7ae0\u4ecb\u7ecd\u8fc7\uff1a\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2013\/09\/css-attr-selector-search\/\">CSS\u5c5e\u6027\u9009\u62e9\u5668\u9a71\u52a8\u7684\u8fc7\u6ee4\u641c\u7d22\u6280\u672f<\/a>\u201d\uff0c\u5927\u5bb6\u6709\u5174\u8da3\u53ef\u4ee5\u770b\u770b\uff0c\u90fd\u662f\u5b9e\u7528\u5c0f\u6280\u80fd\u3002<\/p>\n<p><strong>\u6700\u540e<\/strong>\u91cd\u91cf\u7ea7\u5609\u5bbe\uff0c\u5c5e\u6027\u503c\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684<code>i<\/code>\uff1a<\/p>\n<ul>\n<li><strong>[attr operator value i]<\/strong><br \/>\n\u4f8b\u5982\uff1a<code>[attr~=\"val\" i]<\/code>, <code>[attr*=\"val\" I]<\/code>\u7b49\u90fd\u662f\u5408\u6cd5\u7684\u5199\u6cd5\u3002\u5176\u4e2d\uff0c<code>i<\/code>\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5927\u5199<code>I<\/code>\u3002<\/p>\n<p>\u5c31\u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u7684<code>i<\/code>\u4f5c\u7528\u4e00\u6837\uff0c\u5ffd\u7565\u5927\u5c0f\u5199\uff0c\u7531\u4e8e\u7c7b\u4f3c\u4e2d\u6587\u8fd9\u6837\u7684\u8bed\u8a00\u5e76\u6ca1\u6709\u5927\u5c0f\u5199\u7684\u6982\u5ff5\uff0c\u56e0\u6b64\uff0c\u6b64\u7279\u6027\u4e5f\u53ea\u5bf9<a href=\"http:\/\/baike.baidu.com\/view\/15482.htm\" target=\"_blank\">ASCII\u8303\u56f4<\/a>\u7684\u5b57\u7b26\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u5bf9\u6bd4\u4e0b\uff0c\u73b0\u6709\u9009\u62e9\u5668<code>[attr*=\"val\"]<\/code>\uff0c\u5219\u6709\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"VAL\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/18.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u591a\u4e86\u4e2a<code>i<\/code>\uff0c<code>[attr*=\"val\" i]<\/code>\uff0c\u5219\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;div attr=\"VAL\"&gt;&lt;\/div&gt;      <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Text val\"&gt;&lt;\/div&gt; <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Value\"&gt;&lt;\/div&gt;    <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\">\r\n&lt;div attr=\"Val-ue\"&gt;&lt;\/div&gt;   <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/13.gif\" align=\"absmiddle\"><\/pre>\n<\/div>\n<p>\u518d\u600e\u4e48\u5927\u5c0f\u5199\u90fd\u662f\u53ef\u4ee5\u5339\u914d\u7684\u3002<\/p>\n<p><strong>\u517c\u5bb9\u6027<\/strong><br \/>\n\u76ee\u524dChrome, FireFox, Safari\u5df2\u652f\u6301<code>i<\/code>\u6b63\u5219\uff0c\u4f46\u662f\uff0cIE\u60ca\u559c\u8fc7\u540e\u53c8\u6253\u56de\u4e86\u539f\u5f62\uff0c\u5305\u62ec\u5230IE14\u90fd\u8fd8\u6ca1\u652f\u6301\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u3002<\/p>\n<p><a href=\"http:\/\/caniuse.com\/css-case-insensitive\/embed\" target=\"_blank\" rel=\"nofollow\">\u517c\u5bb9\u6027<\/a>\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201801\/2018-01-10_224507.png\" width=\"537\" height=\"268\" alt=\"CSS\u9009\u62e9\u5668\u5927\u5c0f\u5199\u517c\u5bb9\u6027\" class=\"alignnone\" \/><\/p>\n<p>\u4f30\u8ba1\u5f88\u5feb\uff0c\u5b9e\u9645\u9879\u76ee\u4e2d\u5c31\u53ef\u4ee5\u5e94\u7528\u6b64\u7279\u6027\u4e86\u3002\n<\/li>\n<\/ul>\n<p><strong>\u5b9e\u4f8b<\/strong><br \/>\n\u773c\u89c1\u4e3a\u5b9e\uff0c\u5173\u4e8e\u9009\u62e9\u5668\u7684\u6b63\u5219\uff0c\u6211\u505a\u4e86\u4e2a\u7b80\u6613\u7684demo\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201608\/css-selector-regular-expressions.html\" target=\"_blank\">CSS\u9009\u62e9\u5668\u6b63\u5219\u8868\u8fbe\u5f0fdemo<\/a><\/p>\n<p>\u5982\u4e0bCSS\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>li[data-index^='t'] {\r\n    color: red;    \r\n}\r\nli[data-index^='f'] {\r\n    color: blue;    \r\n}\r\nli[data-index^='f' i]:after {\r\n    content: '\u2713\u652f\u6301i\u6b63\u5219';\r\n    color: green;\r\n}<\/pre>\n<\/div>\n<p>\u7ed3\u679c\u5728FireFox\u6d4f\u89c8\u5668\u4e0b\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201608\/2016-08-07_101138.png\" width=\"335\" height=\"158\" alt=\"FireFox\u6d4f\u89c8\u5668\u4e0bi\u6b63\u5219\u6548\u679c\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\u5982\u679c\u6ca1\u6709\u533a\u5206\u5927\u5c0f\u5199\uff0c\u53ea\u80fd\u6355\u83b7\u4e00\u4e2a<code>&lt;li&gt;<\/code>\uff0c\u591a\u4e86\u4e2a<code>i<\/code>\uff0c\u6700\u540e\u4e24\u4e2a\u90fd\u88ab\u67e5\u8be2\u4e86\u3002<\/p>\n<h3>\u4e94\u3001\u627e\u5f20\u5c3e\u56fe\u538b\u4e2a\u9635<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201608\/08-end-s.jpg\" width=\"500\" height=\"254\" alt=\"\u9493\u8d27 \u5927\u9c7c\u4e00\u5c3e\" class=\"alignnone\" \/><\/p>\n<p>\u8dd1\u4e86N\u6761\u4e4b\u540e\uff0c\u7ec8\u4e8e\u4e0a\u4e86\u4e00\u5c3e\u5927\u7684\u3002\u4e58\u673a\u7ed9\u5927\u5bb6\u79d1\u666e\u4e0b\uff0c\u6b64\u9c7c\u4e3a\u201c\u8377\u5305\u9ca4\u201d\uff0c\u4ea7\u4e8e\u6c5f\u897f\u7701\u5a7a\u6e90\u53bf\uff0c\u89c2\u8d4f\u98df\u7528\u4e24\u7528\u9c7c\uff0c\u8377\u5305\u9ca4\u8089\u8d28\u80a5\u7f8e\u7ec6\u5ae9\uff0c\u6c64\u9c9c\u5473\u7f8e\uff0c\u80a5\u800c\u4e0d\u817b\uff0c\u9999\u800c\u65e0\u8165\uff0c\u5473\u9053\u4e0e\u5e73\u5e38\u7684\u9ca4\u9c7c\u5f88\u4e0d\u4e00\u6837\uff0c\u6240\u4ee5\u4ef7\u683c\u4e5f\u6bd4\u5e73\u5e38\u9ca4\u9c7c\u8d35\uff0c\u6e05\u4ee3\u8457\u540d\u5b66\u8005\u6c6a\u7ec2\u5728\u300a\u533b\u6797\u7e82\u8981\u63a2\u6e90\u300b\u4e00\u4e66\u4e2d\u5199\u9053\uff1a\u6b64\u9c7c\u201c\u548c\u813e\u517b\u80ba\uff0c\u5e73\u809d\u8865\u5fc3\uff0c<strong>\u5b55\u5987\u6700\u5b9c\u98df\u4e4b<\/strong>\u3002\u5b89\u598a\u5b55\uff0c\u597d\u989c\u8272\uff0c\u6b62\u54b3\u9006\uff0c\u7597\u811a\u6c14\uff0c\u6d88\u6c34\u80bf\uff0c\u6cbb\u9ec4\u75b8\u201d\uff0c\u6545\u88ab\u8a89\u4e3a\u201c\u4eba\u95f4\u5929\u7269\u201d\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u5b89\u5229\u7ed3\u675f\uff0c\u6b22\u8fce\u4ea4\u6d41\uff0c\u611f\u8c22\u9605\u8bfb\uff01<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/14.gif\" align=\"absmiddle\"><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u5c0a\u91cd\u8f9b\u52e4\u52b3\u52a8\uff0c\u53ef\u4ee5\u514d\u8d39\u6458\u8981\u3001\u63a8\u8350\u6216\u805a\u5408\uff0c\u4f46\u5b8c\u6574\u8f6c\u8f7d\u9700\u4ed8\u8d39\u8d2d\u4e70\u7248\u6743\uff0c\u8be6\u89c1<a href=\"http:\/\/www.zhangxinxu.com\/sp\/copyright.html\" target=\"_blank\">\u8f6c\u8f7d\u534f\u8bae\u58f0\u660e<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5542\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=5542<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6ca1\u9519\uff0cCSS\u4e5f\u6709\u6b63\u5219\uff0cCSS\u88c5\u903c\u4e24\u5229\u5668\uff1a\u77e9\u9635\u548c\u6b63\u5219\u3002\u672c\u6587\u5c31\u7b80\u5355\u4ecb\u7ecd\u540e\u9762\u7684\u6b63\u5219\uff0c\u6709\u793a\u610f\u6709\u4ee3\u7801\u5c55\u793a\u6709\u622a\u56fe\u6709\u5410\u69fd\uff0c\u5e0c\u671b\u672c\u6587\u7684\u5185\u5bb9\u53ef\u4ee5\u5bf9\u60a8\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\u2026\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[864,222,212],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/5542"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=5542"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/5542\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=5542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=5542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=5542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}