{"id":5101,"date":"2016-06-17T15:08:00","date_gmt":"2016-06-17T07:08:00","guid":{"rendered":"https:\/\/sdeno.com\/?p=5101"},"modified":"2016-06-17T16:03:04","modified_gmt":"2016-06-17T08:03:04","slug":"js%e7%9a%84%e4%ba%8b%e4%bb%b6%e7%9b%91%e5%90%ac%e3%80%81%e6%8d%95%e8%8e%b7%e5%92%8c%e5%86%92%e6%b3%a1","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=5101","title":{"rendered":"js\u7684\u4e8b\u4ef6\u76d1\u542c\u3001\u6355\u83b7\u548c\u5192\u6ce1\u7684\u5173\u7cfb"},"content":{"rendered":"<p>js\u7684\u4e8b\u4ef6\u76d1\u542c\u4e00\u822c\u6709\u4e24\u79cd\u5199\u6cd5<\/p>\n<p>\u65b9\u6cd5\u4e00\uff1a<\/p>\n<pre>element.addEventListener(type, listener[, useCapture]); \/\/ IE6~8\u4e0d\u652f\u6301\r\nelement.attachEvent(\u2019on\u2019 + type, listener); \/\/ IE6~10\uff0cIE11\u4e0d\u652f\u6301\uff08\u5783\u573eIE\u4e13\u5c5e\uff09<\/pre>\n<p>&nbsp;<\/p>\n<p>\u65b9\u6cd5\u4e8c\uff1a<\/p>\n<pre>element[\u2019on\u2019 + type] = function(){} \/\/ \u6240\u6709\u6d4f\u89c8\u5668<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u8fd9\u4e24\u79cd\u65b9\u6cd5\u7684\u533a\u522b\u662f\u9664\u4e86\u517c\u5bb9\u6027\u8fd8\u6709\uff1a<\/p>\n<pre>\u4f7f\u7528addEventListener\u65f6\r\n\r\n&lt;div id=\"father\"&gt;&lt;\/div&gt;\r\n\r\ndocument.getElementById('father').addEventListener('click',function(){\r\n alert('\u7238\u72381');\r\n},false);\r\n\r\ndocument.getElementById('father').addEventListener('click',function(){\r\n alert('\u7238\u72382');\r\n},false);\r\n\r\n\u7ed3\u679c\uff1a\u90fd\u80fd\u6267\u884c\uff0c\u5148\u5f39\u51fa\u7238\u72381\u4e4b\u540e\u662f\u7238\u72382\r\n\uff08\u5bf9\u4e8eattachEvent\u7ed3\u679c\u7c7b\u4f3c\u4f46\u662f\u987a\u5e8f\u6709\u70b9\u4e0d\u540c\u53ef\u4ee5\u53c2\u8003\u300a<a href=\"https:\/\/sdeno.com\/?p=3230\" target=\"_blank\">addEventListener \u7684\u7528\u6cd5\u793a\u4f8b\u4ecb\u7ecd<\/a>\u300b\uff09\r\n----------------------------------------\r\n\r\n\u4f7f\u7528on+type\u65b9\u6cd5\u65f6\uff1a\r\nelement.onclick = function(){ console.log(0); }\r\nelement.onclick = function(){ console.log(1); }\r\n\r\n\u7ed3\u679c\uff1a\u53ea\u80fd\u6267\u884c\u6700\u540e\u4e00\u4e2a\u4e8b\u4ef6<\/pre>\n<p>&nbsp;<\/p>\n<h3 style=\"color: #444444;\">\u8c08\u8c08\u4e8b\u4ef6\u7684\u6355\u83b7\u548c\u5192\u6ce1<\/h3>\n<a href=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/catch.png\"><figure class=\"mdx-lazyload-container\" style=\"max-width:567px\"><div style=\"padding-top:98.765432098765%\"><\/div><div class=\"mdx-img-loading-sp mdui-valign\"><div><div class=\"mdui-spinner\"><\/div><\/div><\/div><img width=\"567\" height=\"560\" class=\"alignnone size-full wp-image-5103 lazyload\" title=\"catch\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/catch.png\" alt=\"catch\" data-srcset=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/catch.png 567w, https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/catch-300x296.png 300w\" sizes=\"auto, (max-width: 567px) 100vw, 567px\"><\/figure><\/a>\n<p>\u7ea2\u8272\uff1a\u6355\u83b7\u4e8b\u4ef6<\/p>\n<p>\u6df1\u84dd\uff1a\u76ee\u6807\u4e8b\u4ef6<\/p>\n<p>\u7eff\u8272\uff1a\u5192\u6ce1\u4e8b\u4ef6<\/p>\n<ul style=\"color: #444444;\">\n<li><strong style=\"font-weight: bold;\">\u6355\u83b7<\/strong>\u00a0\u9636\u6bb5\uff1a\u5728\u4e8b\u4ef6\u5bf9\u8c61\u5230\u8fbe\u4e8b\u4ef6\u76ee\u6807\u4e4b\u524d\uff0c\u4e8b\u4ef6\u5bf9\u8c61\u5fc5\u987b\u4ecewindow\u7ecf\u8fc7\u76ee\u6807\u7684\u7956\u5148\u8282\u70b9\u4f20\u64ad\u5230\u4e8b\u4ef6\u76ee\u6807\u3002 \u8fd9\u4e2a\u9636\u6bb5\u88ab\u6211\u4eec\u79f0\u4e4b\u4e3a\u6355\u83b7\u9636\u6bb5\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\u6ce8\u518c\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u5728\u4e8b\u4ef6\u5230\u8fbe\u5176\u76ee\u6807\u524d\u5fc5\u987b\u5148\u5904\u7406\u4e8b\u4ef6\u3002<\/li>\n<li><strong style=\"font-weight: bold;\">\u76ee\u6807<\/strong>\u00a0\u9636\u6bb5\uff1a\u4e8b\u4ef6\u5bf9\u8c61\u5230\u8fbe\u5176\u4e8b\u4ef6\u76ee\u6807\u3002 \u8fd9\u4e2a\u9636\u6bb5\u88ab\u6211\u4eec\u79f0\u4e3a\u76ee\u6807\u9636\u6bb5\u3002\u4e00\u65e6\u4e8b\u4ef6\u5bf9\u8c61\u5230\u8fbe\u4e8b\u4ef6\u76ee\u6807\uff0c\u8be5\u9636\u6bb5\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u5c31\u8981\u5bf9\u5b83\u8fdb\u884c\u5904\u7406\u3002\u5982\u679c\u4e00\u4e2a\u4e8b\u4ef6\u5bf9\u8c61\u7c7b\u578b\u88ab\u6807\u5fd7\u4e3a\u4e0d\u80fd\u5192\u6ce1\u3002\u90a3\u4e48\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5bf9\u8c61\u5728\u5230\u8fbe\u6b64\u9636\u6bb5\u65f6\u5c31\u4f1a\u7ec8\u6b62\u4f20\u64ad\u3002<\/li>\n<li><strong style=\"font-weight: bold;\">\u5192\u6ce1<\/strong>\u00a0\u9636\u6bb5\uff1a \u4e8b\u4ef6\u5bf9\u8c61\u4ee5\u4e00\u4e2a\u4e0e\u6355\u83b7\u9636\u6bb5\u76f8\u53cd\u7684\u65b9\u5411\u4ece\u4e8b\u4ef6\u76ee\u6807\u4f20\u64ad\u7ecf\u8fc7\u5176\u7956\u5148\u8282\u70b9\u4f20\u64ad\u5230window\u3002\u8fd9\u4e2a\u9636\u6bb5\u88ab\u79f0\u4e4b\u4e3a\u5192\u6ce1\u9636\u6bb5\u3002\u5728\u6b64\u9636\u6bb5\u6ce8\u518c\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u4f1a\u5bf9\u76f8\u5e94\u7684\u5192\u6ce1\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u5982\u679c\u4ee5\u4e0a\u6587\u5b57\u62bd\u8c61\uff0c\u5c31\u7528\u4f8b\u5b50\u6765\u8bf4\u660e\uff1a<\/p>\n<a href=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/addevent.jpg\"><figure class=\"mdx-lazyload-container\" style=\"max-width:139px\"><div style=\"padding-top:89.928057553957%\"><\/div><div class=\"mdx-img-loading-sp mdui-valign\"><div><div class=\"mdui-spinner\"><\/div><\/div><\/div><img width=\"139\" height=\"125\" class=\"alignnone size-full wp-image-5104 lazyload\" title=\"addevent\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/sdeno.com\/wp-content\/uploads\/2016\/06\/addevent.jpg\" alt=\"addevent\"><\/figure><\/a>\n<pre>&lt;div id=\"father\" style=\"height: 100px;width: 100px;background: red; position: absolute; left: 100px;top: 100px;\"&gt;\r\n  &lt;div id=\"son\" style=\"height: 50px;width: 50px;background: yellow;\"&gt;\r\n     &lt;div id=\"son2\" style=\"height: 40px;width: 40px;background:pink;\"&gt;&lt;\/div&gt;\r\n  &lt;\/div&gt;\r\n&lt;\/div&gt;\r\n\r\n\r\n&lt;script&gt;\r\n document.getElementById('father').addEventListener('click',function(){\r\n   alert('\u7238\u72381');\r\n },false);\r\n\r\n\r\n document.getElementById('son').addEventListener('click',function(Event){\r\n   alert('\u513f\u5b50');\r\n },false);\r\n\r\n\r\n\r\n document.getElementById('son2').addEventListener('click',function(Event){\r\n   alert('\u513f\u5b502');\r\n },false);\r\n\r\n &lt;\/script&gt;\r\n\r\n\u5728\u4e09\u4e2adiv\u5c42\u76d1\u542c\u4e86click\u4e8b\u4ef6\u5f53\u70b9\u51fb\u4e86\u7c89\u7ea2\u8272\u533a\u57df\u65f6\u4e5f\u5c31\u662f\u70b9\u51fb\u4e86son2\u7684\u540c\u65f6\uff0c\u4e5f\u5c31\u76f8\u5f53\u4e8e\u70b9\u51fb\u4e86father\u548cson\uff0c\u5c31\u4f1a\u53d1\u751f\u4ee5\u4e0b\u4e8b\u60c5\uff1a\r\n\u6355\u83b7\uff1a\u8981\u627e\u5230\u70b9\u51fb\u7684\u76ee\u6807\u4e8b\u4ef6\u524d\uff0c\u8981\u4ecehtml\u6807\u7b7e\u5728\u5230body\u6807\u7b7e\u4ee5\u6b64\u5f80\u4e0b\u627e\u76f4\u5230\u627e\u5230\u76ee\u6807\u4e3a\u6b62\uff0c\r\n\u5728\u8fd9\u8fc7\u7a0b\u4e2d\u7ecf\u8fc7\u7684DOM\u4e0d\u4f1a\u89e6\u53d1\u4e8b\u4ef6\u5b83\u4eec\u81ea\u5df1\u7ed1\u5b9a\u7684\u4e8b\u4ef6\uff0c\u8fd9\u8fc7\u7a0b\u5c31\u53eb\u6355\u83b7\u9636\u6bb5\u3002\r\n\r\n\u76ee\u6807\uff1a\u4e5f\u5c31\u662f\u7528\u6237\u60f3\u8981\u89e6\u53d1\u4e8b\u4ef6DOM\u7684\u5143\u7d20\uff0c\u8fd9\u65f6\u5019\u76ee\u6807\u4e8b\u4ef6\u5c31\u4f1a\u7b2c\u4e00\u4e2a\u5148\u89e6\u53d1\u4e86\u3002\r\n\r\n\u5192\u6ce1\uff1a\u4ece\u76ee\u6807\u5143\u7d20\u5f00\u59cb\u5728\u7ecf\u8fc7\u5176\u4ed6DOM\u5143\u7d20\u76f4\u5230body\u6807\u7b7e\u5728\u5230html\u6807\u7b7e\uff0c\u8ddf\u6355\u83b7\u76f8\u53cd\u7684\u65b9\u5411\u53eb\u5192\u6ce1\uff0c\r\n\u5728\u8fd9\u8fc7\u7a0b\u4e2d\uff0c\u4ece\u6700\u63a5\u8fd1\u76ee\u6807\u5143\u7d20\u5f00\u59cb\u4e00\u4e00\u6267\u884c\u81ea\u5df1\u7ed1\u5b9a\u7684\u4e8b\u4ef6\uff0c\u8fd9\u8fc7\u7a0b\u5c31\u53eb\u5192\u6ce1\u9636\u6bb5\u3002\r\n\r\n\u7ed3\u679c\uff1a\u5148\u5f39\u51fa\u513f\u5b502 \u5728\u5230 \u513f\u5b50 \u6700\u540e\u7238\u72381\r\n\r\n<\/pre>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #ff0000;\">\u00a0\u963b\u6b62\u6240\u6709\u9ed8\u8ba4\u884c\u4e3a\u4ee5\u53ca\u5192\u6ce1<\/span>\uff08\u4e0d\u4e86\u89e3\u9ed8\u8ba4\u884c\u4e3a\u53ef\u4ee5\u53c2\u8003\u300a<a href=\"https:\/\/sdeno.com\/?p=4947\" target=\"_blank\">html\u4e2d\u9ed8\u8ba4\u884c\u4e3a\u6709\u54ea\u4e9b<\/a>\u300b\uff09<\/p>\n<pre>&lt;script&gt;\r\n document.getElementById('father').addEventListener('click',function(){\r\n   alert('\u7238\u72381');\r\n },false);\r\n\r\n\r\n document.getElementById('son').addEventListener('click',function(Event){\r\n  \/\/Event.<span style=\"color: #ff0000;\">stopPropagation()<\/span>; \/\/\u963b\u6b62\u6240\u6709\u9ed8\u8ba4\u884c\u4e3a\uff0c\u5192\u6ce1\u4ece\u8fd9\u91cc\u5f00\u59cb\u505c\u6b62\r\n  \/\/ Event.<span style=\"color: #ff0000;\">bubbles<\/span>(false); \/\/\u8df3\u8fc7\u6b64\u5192\u6ce1\uff0c\u5192\u6ce1\u4e0d\u7ecf\u8fc7\u8fd9\u91cc\uff0c\u7ee7\u7eed\u5f80\u4e0a\u5192\u6ce1\uff0c\u4e0d\u517c\u5bb9IE\r\n  alert('\u513f\u5b50');\r\n },false);\r\n\r\n\r\n\r\n document.getElementById('son2').addEventListener('click',function(Event){\r\n  alert('\u513f\u5b502');\r\n },false);\r\n\r\n &lt;\/script&gt;<\/pre>\n<p><span style=\"color: #444444;\">\u5728\u4e00\u4e2a\u4e8b\u4ef6\u5b8c\u6210\u4e86\u6240\u6709\u9636\u6bb5\u7684\u4f20\u64ad\u8def\u5f84\u540e\uff0c\u5b83\u7684<\/span><code class=\" language-javascript\" style=\"color: #dd1144;\">Event<span class=\"token punctuation\" style=\"color: #999999;\">.<\/span>currentTarget<\/code><span style=\"color: #444444;\">\u4f1a\u88ab\u8bbe\u7f6e\u4e3a<\/span><code class=\" language-javascript\" style=\"color: #dd1144;\"><span class=\"token keyword\" style=\"color: #0077aa;\">null<\/span><\/code><span style=\"color: #444444;\">\u5e76\u4e14<\/span><code class=\" language-javascript\" style=\"color: #dd1144;\">Event<span class=\"token punctuation\" style=\"color: #999999;\">.<\/span>eventPhase<\/code><span style=\"color: #444444;\">\u4f1a\u88ab\u8bbe\u4e3a0\u3002<\/span><code class=\" language-javascript\" style=\"color: #dd1144;\">Event<\/code><span style=\"color: #444444;\">\u7684\u6240\u6709\u5176\u4ed6\u5c5e\u6027\u90fd\u4e0d\u4f1a\u6539\u53d8\uff08\u5305\u62ec\u6307\u5411\u4e8b\u4ef6\u76ee\u6807\u7684<\/span><code class=\" language-javascript\" style=\"color: #dd1144;\">Event<span class=\"token punctuation\" style=\"color: #999999;\">.<\/span>target<\/code><span style=\"color: #444444;\">\u5c5e\u6027\uff09<\/span><\/p>\n<p>\uff08currentTarget \u83b7\u53d6\u76d1\u542c\u5143\u7d20\u7684DOM\uff0c\u7ed1\u5b9a\u8c01\u5c31\u83b7\u53d6\u8c01\u7684DOM $(&#8216;.move&#8217;).click ..\u5f97\u5230\u7684\u662f.move\u7684DOM\uff08\u4e13\u4e00\uff09<br \/>\nalert(e.currentTarget)=alert(this)\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>js\u7684\u4e8b\u4ef6\u76d1\u542c\u4e00\u822c\u6709\u4e24\u79cd\u5199\u6cd5 \u65b9\u6cd5\u4e00\uff1a element.addEventListener(type, list [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,11],"tags":[],"class_list":["post-5101","post","type-post","status-publish","format-standard","hentry","category-javascript","category-11"],"_links":{"self":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/5101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5101"}],"version-history":[{"count":0,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/5101\/revisions"}],"wp:attachment":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}