{"id":1108,"date":"2012-06-23T16:45:39","date_gmt":"2012-06-23T08:45:39","guid":{"rendered":"https:\/\/blog.rexdf.org\/?p=1091"},"modified":"2012-06-23T16:45:39","modified_gmt":"2012-06-23T08:45:39","slug":"jquery-offset%ef%bc%8cposition%ef%bc%8coffsetparent%ef%bc%8cscrollleft%ef%bc%8cscrolltop-html%e6%8e%a7%e4%bb%b6%e5%ae%9a%e4%bd%8d-css-position%e5%b1%9e","status":"publish","type":"post","link":"https:\/\/blog.rexdf.org\/ja\/2012\/06\/jquery-offset%ef%bc%8cposition%ef%bc%8coffsetparent%ef%bc%8cscrollleft%ef%bc%8cscrolltop-html%e6%8e%a7%e4%bb%b6%e5%ae%9a%e4%bd%8d-css-position%e5%b1%9e\/","title":{"rendered":"jQuery offset\uff0cposition\uff0coffsetParent\uff0cscrollLeft\uff0cscrollTop html\u63a7\u4ef6\u5b9a\u4f4d css position\u5c5e"},"content":{"rendered":"<p>\u5b9a\u4f4d\u5e94\u7528\uff1a\u70b9\u51fb\u4e00\u4e2a\u6309\u94ae\uff0c\u7136\u540e\u5728\u6309\u94ae\u7684\u53f3\u8fb9\u5f39\u51fa\u4e00\u4e2a\u63d0\u793a\u6846<br \/>\n1\uff0c\u63d0\u793a\u6846\u76f8\u5bf9\u4e8e\u5c4f\u5e55\u8fdb\u884c\u5b9a\u4f4d\uff0c\u90a3\u4e48\u4f7f\u7528offset\u6765\u53d6\u5f97\u5f53\u524d\u6309\u94ae\u76f8\u5bf9\u4e8ebody\u7684top\u548cleft\uff0c\u7136\u540e\u901a\u8fc7$(&#8216;body&#8217;).prepend(tipContent);\u628a\u63d0\u793a\u63a7\u4ef6\u52a0\u5230body\u4e0b<br \/>\n\u6ce8\u610ftipContent\u91c7\u7528absolute\u5b9a\u4f4d\uff0c\u5e76\u8bbe\u7f6etop\uff0cleft\u7684\u503c\uff0c\u5f53\u628atipContent\u52a0\u5230body\u7684\u6700\u524d\u9762\u65f6\uff0c\u7531\u4e8etipContent\u524d\u9762\u6ca1\u6709\u4efb\u4f55\u4e1c\u897f\uff0c\u56e0\u6b64\u5b83\u5c31\u662f\u4ee5body\u4e3a\u57fa\u51c6\u6839\u636etop\uff0cleft\u7684\u503c\u8fdb\u884c\u5b9a\u4f4d<\/p>\n<div>\n<div>\n<div>Javascript\u4ee3\u7801<\/div>\n<\/div>\n<ol start=\"1\">\n<li>$(this).offset().left;<\/li>\n<li>$(this).offset().top;<\/li>\n<li>$(&#8216;body&#8217;).prepend(tipContent);<\/li>\n<\/ol>\n<\/div>\n<p>2\uff0c\u63d0\u793a\u6846\u76f8\u5bf9\u4e8e\u70b9\u51fb\u7684\u6309\u94ae\u8fdb\u884c\u5b9a\u4f4d(\u5373\u63d0\u793a\u6846\u51fa\u73b0\u5728\u6309\u94ae\u7684\u65c1\u8fb9)\uff0c\u90a3\u4e48\u4f7f\u7528position\u6765\u53d6\u5f97\u5f53\u524d\u6309\u94ae\u76f8\u5bf9\u4e8eoffset parent\u7684top\u548cleft\uff0c\uff0c\u7136\u540e\u901a\u8fc7$(this).after(tipContent);;\u628a\u63d0\u793a\u63a7\u4ef6\u52a0\u5230\u6309\u94ae\u7684\u540e\u9762(\u5144\u5f1f\u8282\u70b9)\uff0c\u56e0\u6b64\u88ab\u8ffd\u52a0\u7684\u63d0\u793a\u63a7\u4ef6\u7684offset parent\u548c\u6309\u94ae\u7684offset parent\u4e00\u5b9a\u662f\u76f8\u540c\u7684\uff01\uff0c\u4e5f\u5c31\u53d8\u76f8\u8fbe\u5230\u4e86\u63d0\u793a\u63a7\u4ef6\u76f8\u5bf9\u4e8e \u6309\u94ae \u8fdb\u884c\u5b9a\u4f4d\u7684\u6548\u679c\uff01<\/p>\n<p>\/\/ \u6ce8\u610ftipContent\u91c7\u7528absolute\u5b9a\u4f4d\uff0c\u5f53\u628atipContent\u52a0\u5230\u6309\u94ae\u540e\u9762\u540e\uff08\u5144\u5f1f\u8282\u70b9\uff0c\u4ed6\u4eec\u6709\u76f8\u540c\u7684offset parent\uff09<\/p>\n<p>\/\/ absolute\uff1a\u7edd\u5bf9\u5b9a\u4f4d\uff0c\u5143\u7d20\u76f8\u5bf9\u4e8e\u5b83\u7684\u7b2c\u4e00\u4e2a\u88ab\u5b9a\u4f4d\u7684\u7956\u5148\u5143\u7d20\uff08offset parent\u975estatic\uff09\u6765\u8fdb\u884c\u5b9a\u4f4d,\u7531\u4e8e\u6309\u94ae\u548c\u63d0\u793a\u63a7\u4ef6\u5e76\u6392\u5728\u4e00\u8d77\uff0c\u4e0d\u7ba1 \u88ab\u7528\u6765\u4f5c\u4e3a\u57fa\u51c6\u7684\u7b2c\u4e00\u4e2a\u88ab\u5b9a\u4f4d\u7684\u7956\u5148\u5143\u7d20\uff08\u975estatic\uff09\u662f\u8c01\uff0c\u6309\u94ae\u548c\u63d0\u793a\u63a7\u4ef6\u76f8\u5bf9\u4e8e \u57fa\u51c6\u63a7\u4ef6\u7684top\uff0cleft\u8ddd\u79bb\u90fd\u662f\u53ef\u4ee5\u7b80\u5355\u5730\u901a\u8fc7+-\u8fdb\u884c\u5e73\u79fb\u64cd\u4f5c\uff01<\/p>\n<div>\n<div>\n<div>Javascript\u4ee3\u7801<\/div>\n<\/div>\n<ol start=\"1\">\n<li>$(this).position().left;<\/li>\n<li>$(this).position().top;<\/li>\n<li>$(this).after(tipContent);<\/li>\n<\/ol>\n<\/div>\n<p><strong>offset:\u504f\u79fb\u3001\u5e73\u79fb\u3001\u4f4d\u79fb<\/strong><\/p>\n<p><strong>offset()<\/strong>:\u83b7\u53d6\u5339\u914d\u5143\u7d20\u96c6\u5408\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u76f8\u5bf9\u4e8edocument\u7684\u5f53\u524d\u5750\u6807\u503c\uff08\u76f8\u5bf9\u4e8ebody\u5de6\u4e0a\u89d2\u7684left\uff0c top\u7684\u503c\uff09\u3002<br \/>\n\u8fd4\u56de\u7684\u5bf9\u8c61\u5305\u542b\u4e24\u4e2a\u6574\u5f62\u5c5e\u6027\uff1atop \u548c left\u3002<br \/>\n\u5982\u679c\u628a\u4e00\u4e2a\u5143\u7d20\u5b9a\u4f4d\u5230\u5df2\u7ecf\u5b58\u5728\u7684\u5143\u7d20\u7684\u4e0a\u9762\uff08\u7279\u522b\u5730\u505a\u62d6\u62fd\u64cd\u4f5c\u7684\u65f6\u5019\uff09\uff0c .offset()\u65b9\u6cd5\u66f4\u52a0\u6709\u7528\u3002<\/p>\n<p><strong>position()<\/strong>:\u83b7\u53d6\u5f53\u524d\u5339\u914d\u5143\u7d20\u96c6\u5408\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u76f8\u5bf9\u4e8eoffset parent\u7684\u5f53\u524d\u5750\u6807\u503c\uff08\u76f8\u5bf9\u4e8eoffset parent\u5143\u7d20\u5de6\u4e0a\u89d2\u7684left\uff0c top\u7684\u503c\uff09\u3002<br \/>\n\u8fd4\u56de\u7684\u5bf9\u8c61\u5305\u542b\u4e24\u4e2a\u6574\u5f62\u5c5e\u6027\uff1atop \u548c left\u3002<br \/>\n\u5982\u679c\u8981\u8ba9\u4e00\u4e2a\u5143\u7d20\u9760\u8fd1\u53e6\u5916\u4e00\u4e2a\u5143\u7d20\u8fdb\u884c\u5b9a\u4f4d\uff0c\u5e76\u4e14\u8fd92\u4e2a\u5143\u7d20\u88ab\u5305\u542b\u5728\u53e6\u5916\u4e00\u4e2aDOM\u5143\u7d20\u4e2d\uff0c .position()\u65b9\u6cd5\u66f4\u52a0\u6709\u7528\u3002<\/p>\n<p>jquery\u4e0d\u652f\u6301\u53d6\u5f97\u76f8\u5bf9\u4e8e\u9690\u85cf\u5143\u7d20\u3001\u6216\u8005\u5305\u542bborders, margins, padding\u5c5e\u6027\u7684body\u5143\u7d20\u7684\u5750\u6807\u3002\uff08\u5bf9offset\uff08\uff09\u548cposition\uff08\uff09\u65b9\u6cd5\u90fd\u662f\uff01\uff09<\/p>\n<p><strong>offsetParent()<\/strong>\uff1a\u53d6\u5f97\u88ab\u5b9a\u4f4d\u540e\u6700\u8fd1\u7684\u7956\u5148\u5143\u7d20\uff01<br \/>\n\u7ed9\u4f60\u4e00\u4e2ajQuery\u5bf9\u8c61\uff0c\u5b83\u7684offsetParent()\u65b9\u6cd5\u4f1a\u5728\u00a0DOM\u6811\u4e2d\u641c\u7d22\u6240\u6709\u8fd9\u4e2ajQuery\u5bf9\u8c61\u7684\u7956\u5148\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u79bb\u8fd9\u4e2a\u5143\u7d20\u6700\u8fd1\u7684\u7956\u5148\u5143\u7d20\u7684jQuery\u5bf9\u8c61\u3002<br \/>\n\u4e00\u4e2a\u5143\u7d20\u8bf4\u88ab\u5b9a\u4f4d\u6307\u7684\u662f\u5b83\u5305\u542b\u4e00\u4e2aCSS\u5b9a\u4f4d\u5c5e\u6027\uff08position\uff09,\u5e76\u4e14\u5176\u503c\u4e3arelative,absolute\u6216\u8005fixed\u3002\u5176\u503c\u4e0d\u662fcss position\u5c5e\u6027\u7684\u9ed8\u8ba4\u503cstatic\uff01<\/p>\n<p>offsetParent\u5c5e\u6027\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u662f\u8ddd\u79bb\u8c03\u7528offsetParent\u7684\u5143\u7d20\u6700\u8fd1\u7684\uff08\u5728\u5305\u542b\u5c42\u6b21\u4e2d\u6700\u9760\u8fd1\u7684\uff09\uff0c\u5e76\u4e14\u662f\u5df2\u8fdb\u884c\u8fc7CSS\u5b9a\u4f4d\u7684\u5bb9\u5668\u5143\u7d20\u3002<br \/>\n\u5982\u679c\u8fd9\u4e2a\u5bb9\u5668\u5143\u7d20\u672a\u8fdb\u884cCSS\u5b9a\u4f4d, \u5219offsetParent\u5c5e\u6027\u7684\u53d6\u503c\u4e3a\u6839\u5143\u7d20(\u5728\u6807\u51c6\u517c\u5bb9\u6a21\u5f0f\u4e0b\u4e3ahtml\u5143\u7d20\uff1b\u5728\u602a\u5f02\u5448\u73b0\u6a21\u5f0f\u4e0b\u4e3abody\u5143\u7d20)\u7684\u5f15\u7528\u3002<br \/>\n\u5f53\u5bb9\u5668\u5143\u7d20\u7684style.display \u88ab\u8bbe\u7f6e\u4e3a &#8220;none&#8221;\u65f6\uff08\u8bd1\u6ce8\uff1aIE\u548cOpera\u9664\u5916\uff09\uff0coffsetParent\u5c5e\u6027 \u8fd4\u56de null\u3002<\/p>\n<p><strong>scrollLeft()\uff1a<\/strong>\u83b7\u53d6\u5339\u914d\u5143\u7d20\u96c6\u5408\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u76f8\u5bf9\u4e8e\u6c34\u5e73\u6eda\u52a8\u6761\u5de6\u8fb9\u7684\u8ddd\u79bb\u3002<br \/>\n\u8fd9\u4e2a\u8ddd\u79bb\u7b49\u4e8e\u4ece\u88ab\u9009\u4e2d\u5143\u7d20\u5230\u6c34\u5e73\u6eda\u52a8\u6761\u5de6\u8fb9\u7684\u50cf\u7d20\u503c\u3002\u5982\u679c\u6eda\u52a8\u6761\u975e\u5e38\u5de6\u3001\u6216\u8005\u5143\u7d20\u4e0d\u80fd\u88ab\u6eda\u52a8\uff0c\u90a3\u4e48\u8fd9\u4e2a\u503c\u4e3a0.<\/p>\n<p><strong>scrollTop()<\/strong>\uff1a\u83b7\u53d6\u5339\u914d\u5143\u7d20\u96c6\u5408\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u76f8\u5bf9\u4e8e\u7eb5\u5411\u6eda\u52a8\u6761\u4e0a\u8fb9\u7684\u8ddd\u79bb\u3002<br \/>\n\u8fd9\u4e2a\u8ddd\u79bb\u7b49\u4e8e\u4ece\u88ab\u9009\u4e2d\u5143\u7d20\u5230\u7eb5\u5411\u6eda\u52a8\u6761\u4e0a\u8fb9\u7684\u50cf\u7d20\u503c\u3002\u5982\u679c\u6eda\u52a8\u6761\u975e\u5e38\u4e0a\u3001\u6216\u8005\u5143\u7d20\u4e0d\u80fd\u88ab\u6eda\u52a8\uff0c\u90a3\u4e48\u8fd9\u4e2a\u503c\u4e3a0.<\/p>\n<p>\u6ce8\u610f\uff1a\u5f53\u4e00\u4e2a\u5143\u7d20\u88ab\u9690\u85cf\u540e\uff0c\u8c03\u7528scrollTop\uff0c scrollLeft\uff08\uff09\u6216\u8005animate()\u65b9\u6cd5\u662f\u4e0d\u4f1a\u6b63\u5e38\u5de5\u4f5c\u7684\u3002<\/p>\n<p>css position\u5c5e\u6027\uff1aposition\u5c5e\u6027\u6307\u51fa\u4e00\u4e2a\u5143\u7d20\u7684\u5b9a\u4f4d\u65b9\u6cd5\u3002\u67094\u79cd\u53ef\u80fd\u503c\uff1astatic, relative, absolute or fixed\uff1a<\/p>\n<ul>\n<li>static\uff1a\u9ed8\u8ba4\u503c\uff0c\u5143\u7d20\u6309\u7167\u5728\u6587\u6863\u6d41\u4e2d\u51fa\u73b0\u7684\u987a\u5e8f\u6e32\u67d3<\/li>\n<li>absolute\uff1a\u7edd\u5bf9\u5b9a\u4f4d\uff0c\u5143\u7d20\u76f8\u5bf9\u4e8e\u5b83\u7684\u7b2c\u4e00\u4e2a\u88ab\u5b9a\u4f4d\u7684\u7956\u5148\u5143\u7d20\uff08\u975estatic\uff09\u6765\u8fdb\u884c\u5b9a\u4f4d<\/li>\n<li>fixed\uff1a\u5143\u7d20\u76f8\u5bf9\u4e8e\u6d4f\u89c8\u5668window\u8fdb\u884c\u5b9a\u4f4d<\/li>\n<li>relative\uff1a\u5143\u7d20\u76f8\u5bf9\u4e0e\u5b83\u7684\u6b63\u5e38\u4f4d\u7f6e\u8fdb\u884c\u5b9a\u4f4d\uff0c\u56e0\u6b64&#8221;left:20&#8243;\u5c31\u8868\u793a\u5728\u5143\u7d20\u6b63\u5e38\u4f4d\u7f6e\u7684\u57fa\u7840\u4e0a\uff0c\u5de6\u79fb20\u50cf\u7d20\u7684\u8ddd\u79bb\u3002<\/li>\n<\/ul>\n<p>\u53c2\u8003<a href=\"http:\/\/js8.in\/602.html\" target=\"_blank\">http:\/\/js8.in\/602.html<\/a>\u4e2d\u7684\u7ed3\u8bba\uff1a<br \/>\n\u4f7f\u7528position()\u65b9\u6cd5\u65f6\u4e8b\u5b9e\u4e0a\u662f\u628a\u8be5\u5143\u7d20\u5f53\u7edd\u5bf9\u5b9a\u4f4d\u6765\u5904\u7406\uff0c\u83b7\u53d6\u7684\u662f\u8be5\u5143\u7d20\u76f8\u5f53\u4e8e\u6700\u8fd1\u7684\u4e00\u4e2a\u62e5\u6709\u7edd\u5bf9\u6216\u8005\u76f8\u5bf9\u5b9a\u4f4d\u7684\u7236\u5143\u7d20\u7684\u504f\u79fb\u4f4d\u7f6e<br \/>\n\u4f7f\u7528position()\u65b9\u6cd5\u65f6\u5982\u679c\u5176\u6240\u6709\u7684\u7236\u5143\u7d20\u90fd\u4e3a\u9ed8\u8ba4\u5b9a\u4f4d\uff08static\uff09\u65b9\u5f0f\uff0c\u5219\u5176\u5904\u7406\u65b9\u5f0f\u548coffset()\u4e00\u6837\uff0c\u662f\u5f53\u524d\u7a97\u53e3\u7684\u76f8\u5bf9\u504f\u79fb<br \/>\n\u4f7f\u7528offset()\u65b9\u6cd5\u4e0d\u7ba1\u8be5\u5143\u7d20\u5982\u4f55\u5b9a\u4f4d\uff0c\u4e5f\u4e0d\u7ba1\u5176\u7236\u5143\u7d20\u5982\u4f55\u5b9a\u4f4d\uff0c\u90fd\u662f\u83b7\u53d6\u7684\u8be5\u5143\u7d20\u76f8\u5bf9\u4e8e\u5f53\u524d\u89c6\u53e3\u7684\u504f\u79fb<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9a\u4f4d\u5e94\u7528\uff1a\u70b9\u51fb\u4e00\u4e2a\u6309\u94ae\uff0c\u7136\u540e\u5728\u6309\u94ae\u7684\u53f3\u8fb9\u5f39\u51fa\u4e00\u4e2a\u63d0\u793a\u6846 1\uff0c\u63d0\u793a\u6846\u76f8\u5bf9\u4e8e\u5c4f\u5e55\u8fdb\u884c &hellip; <a href=\"https:\/\/blog.rexdf.org\/ja\/2012\/06\/jquery-offset%ef%bc%8cposition%ef%bc%8coffsetparent%ef%bc%8cscrollleft%ef%bc%8cscrolltop-html%e6%8e%a7%e4%bb%b6%e5%ae%9a%e4%bd%8d-css-position%e5%b1%9e\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[19],"tags":[37],"class_list":["post-1108","post","type-post","status-publish","format-standard","hentry","category-site-build","tag-div-css-js-javascript"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/posts\/1108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/comments?post=1108"}],"version-history":[{"count":0,"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/posts\/1108\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/media?parent=1108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/categories?post=1108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.rexdf.org\/ja\/wp-json\/wp\/v2\/tags?post=1108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}