{"id":124,"date":"2016-08-19T14:23:29","date_gmt":"2016-08-19T06:23:29","guid":{"rendered":"http:\/\/blog.xrhoujie.com\/?p=124"},"modified":"2017-07-31T17:14:40","modified_gmt":"2017-07-31T09:14:40","slug":"modernizr-js%ef%bc%8c%e8%ae%a9css%e5%85%bc%e5%ae%b9%e6%80%a7%e8%b7%9f%e5%8e%86%e5%8f%b2%e8%af%b4%e5%86%8d%e8%a7%81%ef%bc%81%e4%b8%8b%e7%af%87","status":"publish","type":"post","link":"http:\/\/blog.xrhoujie.com\/?p=124","title":{"rendered":"Modernizr.js\uff0c~\u8ba9css\u517c\u5bb9\u6027\u8ddf\u5386\u53f2\u8bf4\u518d\u89c1\uff01(\u4e0b\u7bc7)"},"content":{"rendered":"
\u6458\u8981: \u4e0a\u6587\u63d0\u53ca\u4e86\u5173\u4e8eModernizr.js\u7684\u7279\u6027\uff0c\u4f7f\u7528\u65b9\u5f0f\uff0c\u4ee5\u53ca\u5f15\u5165\u65b9\u6cd5\uff0c\u63a5\u4e0b\u6765\u7ee7\u7eed\u5f00\u59cb\u5b66\u4e60<\/div>\n
\n
\n

\u63a5\u4e0b\u6765\u4f1a\u4e3a\u5927\u5bb6\u4e3e\u4e00\u4e2a\u6bd4\u8f83\u8d34\u5207\u7684\u4f8b\u5b50\uff0c\u8bf7\u770b\u4ee3\u7801<\/p>\n

\t\t.no-borderradius<\/span> #c<\/span> {\r\n  \tborder<\/span>: 5px<\/span> solid red;\r\n  \t-webkit-border-radius<\/span>: 12px<\/span>;\r\n  \t-moz-border-radius<\/span>: 12px<\/span>;\r\n  \tborder-radius<\/span>: 12px<\/span>;  \r\n}  \r\n\r\n.boxshadow<\/span> #c<\/span> {\r\n  \tborder<\/span>:none;\r\n  \t-webkit-box-shadow<\/span>: rgba<\/span>(0,0,0, .5) 3px<\/span> 3px<\/span> 6px<\/span>;\r\n  \t-moz-box-shadow<\/span>: rgba<\/span>(0,0,0, .5) 3px<\/span> 3px<\/span> 6px<\/span>;\r\n  \tbox-shadow<\/span>: rgba<\/span>(0,0,0, .5) 3px<\/span> 3px<\/span> 6px<\/span>;  \r\n}<\/code><\/pre>\n
\u4e0a\u9762\u7684\u90e8\u5206\u662fCSS\uff0c\u5927\u6982\u7684\u610f\u601d\u662f\u8bf4\uff0c\u5982\u679c\u6d4f\u89c8\u5668\u652f\u6301\u9634\u5f71\u5c5e\u6027\uff0c\u5219\u6267\u884c\u4e0b\u9762\uff0c\u5982\u679c\u4e0d\u652f\u6301\u9634\u5f71\u5c5e\u6027”no-\u4e3a\u524d\u7f00” \u5219\u6267\u884c\u7b2c\u4e8c\u5957\u65b9\u6848\uff0c\u4e5f\u5c31\u662f\u4e0a\u9762\u7684\u90e8\u5206\u3002<\/p>\n
<h1<\/span> class<\/span>=\"borderradius\"<\/span> id<\/span>=\"c\"<\/span>><\/span>121231231<\/h1<\/span>><\/span><\/code><\/pre>\n
\u6211\u4eec\u73b0\u5728\u5f00\u59cb\u8fd0\u884c\u4e00\u4e0b\u8fdb\u884c\u6d4b\u8bd5\uff0c\u679c\u7136\u6548\u679c\u5982\u56fe\u6240\u793a\u3002<\/p>\n
\u5728\u706b\u72d0 IE9\u7b49\u6d4f\u89c8\u5668\u662f\u8fd9\u4e2a\u6837\u5b50<\/p>\n
 <\/p>\n
\"\"<\/p>\n
 <\/p>\n
\"\"<\/p>\n
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 <\/p>\n
\u770b\u8d77\u6765\u8ddf\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\u662f\u4e00\u6837\u7684\uff0c\u522b\u6025\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u653e\u5728 IE6 7 8 \u8fd9\u4e09\u5144\u5f1f\u4e0b\u9762\u8fd0\u884c\u770b\u4e00\u770b\u6548\u679c<\/p>\n
 <\/p>\n
\"\"<\/p>\n
 <\/p>\n
\u5927\u5bb6\u8bf7\u770b\uff0c\u5728IE6\u7684\u73af\u5883\u4e0b\u8fd0\u884c\u65f6\uff0c\u662f\u8fd9\u4e2a\u6837\u5b50\uff0c\u521a\u597d\u9a8c\u8bc1\u4e86\u521a\u521a\u7684\u5b9e\u9a8c\uff0c\u63a5\u7740\u662fIE8<\/p>\n
 <\/p>\n
\"\"<\/p>\n
 <\/p>\n
IE\u516b\u8fd0\u884c\u4e5f\u662f\u5982\u6b64\u7684\u9178\u723d\u9177\u70ab\uff0c\u54c8\u54c8\u54c8<\/p>\n
PS\uff08\u6211\u7684IE7\u5d29\u6e83\u4e86\u6682\u65f6\u7528\u4e0d\u4e86\uff0c\u5927\u5bb6\u611f\u5174\u8da3\u53ef\u4ee5\u62ff\u7740\u4ee3\u7801\u81ea\u5df1\u5c1d\u8bd5\u8fd0\u884c\u4e00\u4e0b\uff0c\uff09<\/p>\n
\u4e2a\u4eba\u611f\u89c9\u8fd9\u4e2a\u6846\u67b6\u7684\u4f18\u52bf\u4e0d\u5355\u5355\u662f\u8ba9\u65b0\u624b\u5199\u51fa\u4f18\u96c5\u7684CSS\uff0c\u4e5f\u6446\u8131\u4e86IE6 IE7 IE8\u7684 *_\u00a0 _ _ #\u7b49CSSHACK\u79c1\u6709\u517c\u5bb9\u7684\u5199\u6cd5\uff0c\u800c\u662f\u5728\u4e8eJS\u90e8\u5206\uff0c\u672c\u4eba\u4e5f\u662f\u83dc\u9e1f\u4e00\u4e2a\uff0c\u8fd9\u4e9b\u4ec5\u4ec5\u662f\u51b0\u5c71\u4e00\u89d2\uff0c\u4e0b\u9762\u7ed9\u5927\u5bb6\u5217\u51fa\u6765\u5173\u4e8emodernizr.js\u7684CSS\u517c\u5bb9\u7c7b\u90e8\u5206\uff0c\u53ef\u4ee5\u53c2\u8003\u8fd9\u6765\u5199CSS<\/p>\n
 <\/p>\n
 CSS<\/span> \u529f\u80fd\r\n\t\r\n\r\nModernizr<\/span> \u7c7b\uff08\u5c5e\u6027\uff09\r\n@font-face<\/span> \tfontface<\/span>\r\n::before<\/span> and<\/span> ::after<\/span> pseudo-elements<\/span> \tgeneratedcontent<\/span>\r\nbackground-size<\/span> \tbackgroundsize<\/span>\r\nborder-image<\/span> \tborderimage<\/span>\r\nborder-radius<\/span> \tborderradius<\/span>\r\nbox-shadow<\/span> \tboxshadow<\/span>\r\n\r\nCSS<\/span> animations<\/span>\r\n\tcssanimations<\/span>\r\n\r\nCSS<\/span> 2D<\/span> transformations<\/span>\r\n\tcsstransforms<\/span>\r\n\r\nCSS<\/span> 3D<\/span> transformations<\/span>\r\n\tcsstransforms3d<\/span>\r\n\r\nCSS<\/span> transitions<\/span>\r\n\tcsstransitions<\/span>\r\n\r\nflexible<\/span> box<\/span> layout<\/span>\r\n\tflexbox<\/span>\r\n\r\ngradients<\/span>\r\n\tcssgradients<\/span>\r\nhsla<\/span>() \thsla<\/span>\r\n\r\nmulti-column<\/span> layout<\/span>\r\n\tcsscolumns<\/span>\r\n\r\nmultiple<\/span> backgrounds<\/span>\r\n\tmultiplebgs<\/span>\r\nopacity<\/span> \topacity<\/span>\r\n\r\nreflection<\/span>\r\n\tcssreflections<\/span>\r\nrgba<\/span>() \trgba<\/span>\r\ntext-shadow<\/span> \ttextshadow<\/span><\/code><\/pre>\n
 <\/p>\n
\u5217\u4e3e\u4e86 Modernizr \u4f7f\u7528\u7684\u7c7b\u540d\u79f0\u4ee5\u8868\u660e\u5bf9 CSS3 \u7684\u652f\u6301\u3002 \u5982\u679c\u67d0\u4e2a\u529f\u80fd\u4e0d\u652f\u6301\uff0c\u90a3\u4e48\u76f8\u5e94\u7c7b\u7684\u540d\u79f0\u7528no-\u4f5c\u524d\u7f00\u3002<\/p>\n
 <\/p>\n
Modernizr \u4f7f\u7528 JavaScript \u68c0\u6d4b\u6d4f\u89c8\u5668\u6240\u652f\u6301\u7684\u529f\u80fd\uff0c\u4f46\u662f\uff0c\u5b83\u5e76\u4e0d\u662f\u4f7f\u7528 JavaScript \u52a8\u6001\u5730\u52a0\u8f7d\u4e0d\u540c\u7684\u6837\u5f0f\u8868\uff0c\u800c\u662f\u4f7f\u7528\u975e\u5e38\u7b80\u5355\u7684\u6280\u672f\u5c06\u7c7b\u6dfb\u52a0\u5230\u9875\u9762\u7684\u6807\u7b7e\u3002\u7136\u540e\u4f5c\u4e3a\u8bbe\u8ba1\u8005\u7531\u4f60\u51b3\u5b9a\u4f7f\u7528 CSS \u5c42\u53e0\u4e3a\u76ee\u6807\u5143\u7d20\u63d0\u4f9b\u5408\u9002\u7684\u6837\u5f0f\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5982\u679c\u9875\u9762\u652f\u6301\u00a0box-shadow\u00a0\u5c5e\u6027\uff0c\u90a3\u4e48 Modernizr \u4f1a\u6dfb\u52a0\u00a0boxshadow\u00a0\u7c7b\u3002\u5982\u679c\u4e0d\u652f\u6301\uff0c\u90a3\u4e48\u5b83\u7528\u00a0no-boxshadow\u00a0\u7c7b\u4f5c\u4e3a\u66ff\u4ee3\u8fdb\u884c\u6dfb\u52a0\u3002<\/p>\n
\u7531\u4e8e\u6d4f\u89c8\u5668\u5ffd\u7565\u5b83\u4eec\u65e0\u6cd5\u8bc6\u522b\u7684 CSS \u5c5e\u6027\uff0c\u56e0\u6b64\u4f60\u53ef\u4ee5\u653e\u5fc3\u5730\u6309\u7167\u4f60\u7684\u57fa\u672c\u6837\u5f0f\u89c4\u5219\u4f7f\u7528\u00a0box-shadow\u00a0\u5c5e\u6027\uff0c\u7136\u800c\u9700\u8981\u6309\u7167\u4e0b\u9762\u7684\u683c\u5f0f\u4e3a\u65e7\u7248\u672c\u7684\u6d4f\u89c8\u5668\u6dfb\u52a0\u5355\u72ec\u7684<\/p>\n
.no-boxshadow img { \/* styles for browsers that don’t support box-shadow *\/ }<\/p>\n
\u53ea\u6709\u4e0d\u652f\u6301\u00a0box-shadow\u00a0\u7684\u6d4f\u89c8\u5668\u624d\u4f1a\u6709\u00a0no-boxshadow\u00a0\u7c7b\uff0c\u56e0\u6b64\u5176\u5b83\u7684\u6d4f\u89c8\u5668\u4e0d\u4f1a\u5e94\u7528\u8fd9\u4e2a\u6837\u5f0f\u89c4\u5219\u3002<\/p>\n
 <\/p>\n
\u4e0b\u9762\u5230\u4e86JS\u90e8\u5206\uff0c\u5bb9\u6211\u6162\u6162\u8ddf\u5404\u4f4d\u9053\u6765\uff0c\u563f\u563f<\/p>\n
$(document<\/span>).ready(function<\/span> () <\/span>{ if<\/span> (Modernizr.borderradius) {\r\n        $('#MyDiv'<\/span>).addClass('borderRadiusStyle'<\/span>);\r\n    } if<\/span> (Modernizr.csstransforms) {\r\n        $('#MyDiv'<\/span>).addClass('transformsStyle'<\/span>);\r\n    }\r\n});<\/code><\/pre>\n
\u8fd9\u83ca\u82b1\u610f\u601d\u662f\uff0c\u5982\u679c\u5f53\u524d\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\u5706\u89d2\u5c5e\u6027\u7684\u8bdd\uff0cID\u4e3aMyDiv\u7684\u5c42\u5c31\u6dfb\u52a0CSS-borderRadiusStyle\uff0c\u540c\u7406\uff0c\u5982\u679c\u4e0d\u652f\u6301CSSTRANSFORM\u65f6\u5019 \u5c31\u6dfb\u52a0\u4e0b\u9762\u7684\uff0c\u8c8c\u4f3c\u4ec5\u4ec5\u591a\u4e86\u4e00\u4e2a\u5224\u65ad\u800c\u5df2\uff0c<\/p>\n
\u63a5\u4e0b\u6765\u7ed9\u5927\u5bb6\u5217\u4e00\u4e2a\u5e38\u7528\u7684\u8868\u5355\u4f8b\u5b50\uff0cautofocus\u00a0 required \u8fd9\u4e24\u4e2a\u4e00\u4e2a\u662f\u81ea\u52a8\u83b7\u53d6\u7126\u70b9 autofocus=”autofocus”<\/p>\n
 window<\/span>.onload = function<\/span>()<\/span>{\r\n    \r\n  var<\/span> form = document<\/span>.forms[0<\/span>],inputs = form.elements;\r\n\r\n  if<\/span>(!Modernizr.input.autofocus){\r\n  \r\n    inputs[0<\/span>].focus();\r\n\r\n\t  }<\/code><\/pre>\n
\u5728\u6d4f\u89c8\u5668\u52a0\u65f6\u5019\u6267\u884c\u51fd\u6570\uff0c\u83b7\u53d6\u8868\u5355form \u7684DOM\u5143\u7d20\uff0c<\/p>\n
\u5982\u679c\u5f53\u524d\u6d4f\u89c8\u5668\u4e0d\u652f\u6301autofocus\u7684\u8bdd\uff0c\u6267\u884c\u7b2c\u4e00\u4e2ainput\u8868\u5355\u81ea\u52a8\u4e3a\u5bf9\u7126\u6a21\u5f0f\uff0c\u54ea\uff0c\u770b\u8d77\u6765\u662f\u4e0d\u662f\u975e\u5e38\u7684\u7b80\u5355\uff01\uff01<\/p>\n
 <\/p>\n
\u63a5\u7740\u8fdb\u884c\u6df1\u5165\u4e00\u4e0b<\/p>\n
 if<\/span>(!Modernizr.input.required){\r\n\t     \r\n\t\t form.onsubmit = function<\/span>()<\/span>{\r\n\t\t \r\n\t\t   var<\/span> required = [], att val;\r\n\r\n\t\t   for<\/span>(var<\/span> i = 0<\/span>; i < inputs.length;i++){\r\n\t\t      \r\n\t\t\t  att = inputs[i].getAttribute('required'<\/span>);\r\n\r\n\t\t\t    if<\/span>(att != null<\/span>){\r\n\t\t\t\t\r\n\t\t\t\t  val = inputs[i].value; \/\/\u6709\u5185\u5bb9<\/span>\r\n\t\t\t\t   \r\n\t\t\t\t  if<\/span>(val.replace(\/^\\s+|\\s+$\/g<\/span>,''<\/span>) == ''<\/span>){\r\n\t\t\t\t  \/\/\u5982\u679c\u662f\u7a7a\u5b57\u7b26\u4e32<\/span>\r\n\t\t\t\t      required.push(input[i].name);\r\n\t\t\t\t\t  \/\/\u4ece\u961f\u5c3e\u4e0d\u65ad\u8ffd\u52a0\u6392\u7a7a\u4e3a\u6b62<\/span>\r\n\t\t\t\t\t   }\r\n\t\t\t\t  }\r\n\r\n\t\t      }\r\n\r\n\t\t\t  if<\/span>(required.length > 0<\/span>){\r\n\t\t\t   \r\n\t\t\t    alert('fell'<\/span>+required.join(','<\/span>));\r\n\t\t\t\treturn<\/span> false<\/span>;\r\n\t\t\t\t\/\/\u5982\u679c\u6709\u5185\u5bb9\u3002\u8fdb\u884c\u8b66\u544a\uff0c\u963b\u6b62\u63d0\u4ea4<\/span>\r\n\t\t\t     }\r\n\t\t   }\r\n\t    }\r\n   }<\/code><\/pre>\n
\u662f\u4e0d\u662f\u611f\u89c9\u597d\u5927\u4e00\u4e32\u4ee3\u7801\uff1f\u6211\u4eec\u5148\u6765\u5206\u6790\u4e00\u4e0b\uff0c<\/p>\n
1.\u9996\u5148\u5982\u679c\u5f53\u524d\u6d4f\u89c8\u5668\u4e0d\u652f\u6301required\u5c5e\u6027\u7684\u8bdd\uff0c\u521b\u5efa\u4e00\u4e2a\u7a7a\u6570\u7ec4\u7528\u6765\u5b58\u653e\u8868\u5355\u6570\u636e\uff0c<\/p>\n
2.\u68c0\u6d4b\u8868\u5355\u5185\u5bb9\u968f\u540e\u4ed8\u7ed9\u5143\u7d20\u5c5e\u6027\u5199\u5165\u6570\u7ec4\uff0c<\/p>\n
3.\u68c0\u6d4b\u5f53\u524d\uff0c\u5982\u679c\u6570\u7ec4\u5185\u6709\u5185\u5bb9\u7684\u8bdd\uff0c \u963b\u6b62\u63d0\u4ea4 \u3002<\/p>\n
5.\u5982\u679c\u91cc\u9762\u662f\u7a7a\u7684\u975e\u6cd5\u5b57\u7b26\u4e32\uff0c\u4ece\u961f\u5c3e\u4e0d\u65ad\u8fdb\u884c\u8ffd\u52a0\u76f4\u5230\u6392\u7a7a\u4e3a\u6b62\uff0c\u4e0d\u7136\u5c31\u662f\u963b\u6b62\u63d0\u4ea4<\/p>\n
\u55ef \u5c31\u662f\u8fd9\u6837\uff0c\u963b\u6b62\u63d0\u4ea4+\u963b\u6b62\u63d0\u4ea4=\u5b8c\u7f8e\uff01<\/p>\n
\u73b0\u5728\u662f\u4e0d\u662f\u5bf9Modernizr \u6709\u4e86\u4e00\u4e2a\u5927\u4f53\u4e0a\u7684\u4e86\u89e3\uff1f \u7ed9\u4eba\u611f\u89c9\u6ca1\u6709\u70b9JS\u529f\u5e95\u6216\u8005\u662f\u7eaf\u65b0\u624b\uff0c\u5bf9\u8fd9\u4e2a\u4e1c\u897f\u60f3\u73a9\u7684666\uff0c\u8d39\u70b9\u52b2\uff0c<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u6458\u8981: \u4e0a\u6587\u63d0\u53ca\u4e86\u5173\u4e8eModernizr.js\u7684\u7279\u6027\uff0c\u4f7f\u7528\u65b9\u5f0f\uff0c\u4ee5\u53ca\u5f15\u5165\u65b9\u6cd5\uff0c\u63a5\u4e0b\u6765\u7ee7\u7eed\u5f00\u59cb\u5b66\u4e60 \u63a5\u4e0b\u6765\u4f1a\u4e3a\u5927 […]<\/p>\n","protected":false},"author":1,"featured_media":228,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[12],"tags":[20],"_links":{"self":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/124"}],"collection":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=124"}],"version-history":[{"count":1,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/124\/revisions"}],"predecessor-version":[{"id":125,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/124\/revisions\/125"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/media\/228"}],"wp:attachment":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=124"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}