{"id":54735,"date":"2025-08-13T10:49:42","date_gmt":"2025-08-13T02:49:42","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/54735.html"},"modified":"2025-08-13T10:49:42","modified_gmt":"2025-08-13T02:49:42","slug":"javascript-%e4%ba%8b%e4%bb%b6%e6%b5%81%e7%9a%84%e6%8d%95%e8%8e%b7%e5%92%8c%e5%86%92%e6%b3%a1","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/54735.html","title":{"rendered":"javascript \u4e8b\u4ef6\u6d41\u7684\u6355\u83b7\u548c\u5192\u6ce1"},"content":{"rendered":"<p>\u95ee\u9898\u51fa\u73b0\u7684\u573a\u666f\u662f&#xff0c;\u7236\u5143\u7d20\u548c\u5b50\u5143\u7d20\u4f7f\u7528\u540c\u6837\u7684\u4e8b\u4ef6&#xff08;\u70b9\u51fb&#xff09;\u7136\u540e\u70b9\u51fb\u89e6\u53d1\u4f1a\u4e24\u4e2a\u90fd\u89e6\u53d1&#xff0c;\u5982\u679c\u53ea\u60f3\u7528\u89e6\u53d1\u7236\u5143\u7d20\u5462\u00a0 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&#xff08;\u540c\u6837\u4e5f\u662f\u963b\u6b62\u5192\u6ce1&#xff09;<\/p>\n<ul>\n<li>\u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a<\/li>\n<\/ul>\n<p>e.preventDefault()<\/p>\n<p>&lt;!DOCTYPE html&gt;<br \/>\n&lt;html lang&#061;&#034;en&#034;&gt;<\/p>\n<p>&lt;head&gt;<br \/>\n    &lt;meta charset&#061;&#034;UTF-8&#034;&gt;<br \/>\n    &lt;meta name&#061;&#034;viewport&#034; content&#061;&#034;width&#061;device-width, initial-scale&#061;1.0&#034;&gt;<br \/>\n    &lt;title&gt;Document&lt;\/title&gt;<br \/>\n    &lt;style&gt;<br \/>\n        .outer {<br \/>\n            width: 500px;<br \/>\n            height: 500px;<br \/>\n            border: 1px solid;<br \/>\n            background-color: red;<br \/>\n        }<\/p>\n<p>        .inner {<br \/>\n            width: 200px;<br \/>\n            height: 300px;<br \/>\n            border: 1px solid white;<br \/>\n            background-color: aqua;<br \/>\n        }<br \/>\n    &lt;\/style&gt;<br \/>\n&lt;\/head&gt;<\/p>\n<p>&lt;body&gt;<br \/>\n    &lt;div class&#061;&#034;outer&#034;&gt;div2<br \/>\n        &lt;div class&#061;&#034;inner&#034;&gt;div1&lt;\/div&gt;<br \/>\n    &lt;\/div&gt;<\/p>\n<p>    &lt;script&gt;<br \/>\n        const outer &#061; document.getElementsByClassName(&#034;outer&#034;)[0];<br \/>\n        const inner &#061; document.getElementsByClassName(&#034;inner&#034;)[0];<\/p>\n<p>        \/\/ \u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668<br \/>\n        outer.addEventListener(&#039;click&#039;, function (e) {<br \/>\n            console.log(&#034;outer \u7684\u6355\u83b7 \u76d1\u542c\u5668\u88ab\u89e6\u53d1&#034;);<br \/>\n            \/\/ e.stopPropagation(); \/\/<br \/>\n        }, true);<br \/>\n        outer.addEventListener(&#039;click&#039;, function (e) {<br \/>\n            console.log(&#034;outer \u7684\u5192\u6ce1\u76d1\u542c\u5668\u88ab\u89e6\u53d1&#034;);<br \/>\n            \/\/ e.stopPropagation();<br \/>\n        }, false);<br \/>\n        inner.addEventListener(&#039;click&#039;, function (e) {<br \/>\n            console.log(&#034;inner \u7684\u6355\u83b7\u76d1\u542c\u5668\u88ab\u89e6\u53d1&#034;);<br \/>\n            \/\/ e.stopPropagation();<br \/>\n        }, true);<\/p>\n<p>        inner.addEventListener(&#039;click&#039;, function (e) {<br \/>\n            console.log(&#034;inner \u7684\u5192\u6ce1\u6355\u83b7\u76d1\u542c\u5668\u88ab\u89e6\u53d1&#034;);<br \/>\n            \/\/ e.stopPropagation();<br \/>\n        }, false);<\/p>\n<p>    &lt;\/script&gt;<br \/>\n&lt;\/body&gt;<\/p>\n<p>&lt;\/html&gt;<\/p>\n<p>\u53ef\u4ee5\u7528\u8fd9\u4e2a\u81ea\u6d4b\u4e00\u4e0b&#xff0c;\u8fd9\u662f\u6700\u521d\u7684\u6837\u5b50<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"800\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813024940-689bfd4445571.png\" width=\"845\" \/><\/p>\n<p>\u5f53\u5728outer\u6355\u83b7\u7684\u76d1\u542c\u5668\u91cc\u52a0\u4e0a e.stopPropagation();<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"713\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813024940-689bfd44af3bd.png\" width=\"647\" \/><\/p>\n<p>\u8865\u5145\u4e00\u4e0b \u8fd9\u4e2ae \u662f\u4e8b\u4ef6\u5bf9\u8c61event\u00a0 \u662f\u76d1\u542c\u5668\u5728\u6267\u884c\u56de\u8c03\u51fd\u6570\u4e2d\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570&#xff0c;\u4e8b\u4ef6\u5bf9\u8c61<\/p>\n<ul>\n<li>\n<p>\u4e8b\u4ef6\u5728\u6355\u83b7\u9636\u6bb5\u88ab outer \u6355\u83b7\u540e&#xff0c;stopPropagation()\u00a0\u963b\u6b62\u4e86\u4e8b\u4ef6\u7ee7\u7eed\u5411\u4e0b\u4f20\u64ad&#xff08;\u4e0d\u4f1a\u5230\u8fbe inner&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u56e0\u6b64&#xff0c;inner \u7684\u6355\u83b7\u548c\u5192\u6ce1\u76d1\u542c\u5668\u90fd\u4e0d\u4f1a\u89e6\u53d1&#xff0c;outer \u7684\u5192\u6ce1\u76d1\u542c\u5668\u4e5f\u4e0d\u4f1a\u89e6\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7b2c\u4e8c\u4e2a\u662fouter\u5192\u6ce1\u76d1\u542c\u5668\u6dfb\u52a0 e.stopPropagation();<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"743\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813024940-689bfd44d0ea9.png\" width=\"707\" \/><\/p>\n<ul>\n<li>\n<p>\u4e8b\u4ef6\u4f1a\u6b63\u5e38\u5b8c\u6210\u6355\u83b7\u9636\u6bb5\u548c\u76ee\u6807\u9636\u6bb5&#xff08;inner \u7684\u76d1\u542c\u5668\u4f1a\u89e6\u53d1&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u5192\u6ce1\u9636\u6bb5&#xff0c;\u4e8b\u4ef6\u5230\u8fbe outer \u7684\u5192\u6ce1\u76d1\u542c\u5668\u65f6\u88ab\u963b\u6b62&#xff0c;\u4f46\u6b64\u65f6\u4e8b\u4ef6\u5df2\u7ecf\u5b8c\u6210\u4e86\u76ee\u6807\u9636\u6bb5\u7684\u4f20\u64ad\u3002<\/p>\n<\/li>\n<li>\n<p>stopPropagation()\u00a0\u5728\u5192\u6ce1\u9636\u6bb5\u7684\u4f5c\u7528\u662f\u963b\u6b62\u4e8b\u4ef6\u7ee7\u7eed\u5411\u4e0a\u4f20\u64ad&#xff08;\u4f8b\u5982&#xff0c;\u963b\u6b62\u7236\u5143\u7d20\u7684\u5192\u6ce1\u76d1\u542c\u5668&#xff09;&#xff0c;\u4f46\u5bf9\u6355\u83b7\u9636\u6bb5\u65e0\u5f71\u54cd\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7136\u540e\u7ed9inner\u7684\u6355\u83b7\u76d1\u542c\u5668\u52a0\u4e0a\u963b\u6b62\u4f20\u64ad\u65b9\u6cd5&#xff0c;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"722\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813024940-689bfd44f027f.png\" width=\"705\" \/><\/p>\n<ul>\n<li>\n<p>\u4e8b\u4ef6\u5728\u6355\u83b7\u9636\u6bb5\u4f1a\u4f9d\u6b21\u89e6\u53d1 outer \u548c inner \u7684\u6355\u83b7\u76d1\u542c\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728 inner \u7684\u6355\u83b7\u76d1\u542c\u5668\u4e2d\u8c03\u7528\u00a0stopPropagation()\u00a0\u4f1a\u963b\u6b62\u4e8b\u4ef6\u7ee7\u7eed\u5411\u4e0b\u4f20\u64ad&#xff08;\u867d\u7136\u5df2\u7ecf\u5230\u8fbe\u76ee\u6807&#xff0c;\u4f46\u4e0d\u4f1a\u89e6\u53d1\u76ee\u6807\u9636\u6bb5\u7684\u5192\u6ce1\u76d1\u542c\u5668&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>\u56e0\u6b64&#xff0c;inner \u7684\u5192\u6ce1\u76d1\u542c\u5668\u548c outer \u7684\u5192\u6ce1\u76d1\u542c\u5668\u90fd\u4e0d\u4f1a\u89e6\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<p>&#xff0c;<\/p>\n<p>\u6700\u540e\u7ed9inner\u7684\u5192\u6ce1\u6dfb\u52a0\u963b\u6b62<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"693\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813024941-689bfd451f63e.png\" width=\"694\" \/><\/p>\n<ul>\n<li>\n<p>\u4e8b\u4ef6\u4f1a\u6b63\u5e38\u5b8c\u6210\u6355\u83b7\u9636\u6bb5\u548c\u76ee\u6807\u9636\u6bb5\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728 inner \u7684\u5192\u6ce1\u76d1\u542c\u5668\u4e2d\u8c03\u7528\u00a0stopPropagation()\u00a0\u4f1a\u963b\u6b62\u4e8b\u4ef6\u7ee7\u7eed\u5411\u4e0a\u5192\u6ce1&#xff08;outer \u7684\u5192\u6ce1\u76d1\u542c\u5668\u4e0d\u4f1a\u89e6\u53d1&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>stopPropagation()\u7684\u4f5c\u7528<\/p>\n<p>\u9996\u5148\u786e\u5b9e\u90fd\u662f\u963b\u6b62\u4e8b\u4ef6\u8fdb\u4e00\u6b65\u4f20\u64ad<\/p>\n<p>\u5728\u6355\u83b7\u9636\u6bb5\u8c03\u7528\u65f6&#xff0c;\u4f1a\u963b\u6b62\u4e8b\u4ef6\u5411\u4e0b\u4f20\u64ad\u5230\u76ee\u6807<\/p>\n<p>\u5728\u5192\u6ce1\u9636\u6bb5\u8c03\u7528\u65f6&#xff0c;\u4f1a\u963b\u6b62\u4e8b\u4ef6\u5411\u4e0a\u4f20\u64ad\u5230\u7236\u5143\u7d20<\/p>\n<p>\u4e8b\u4ef6\u6d41\u662f \u6355\u83b7\u9636\u6bb5-\u300b\u76ee\u6807\u9636\u6bb5-\u300b\u5192\u6ce1\u9636\u6bb5\u00a0<\/p>\n<p>\u4e14\u6355\u83b7\u9636\u6bb5\u662f\u4ece\u5916\u5230\u5185<\/p>\n<p>\u76ee\u6807\u9636\u6bb5&#xff1a;\u89e6\u53d1\u76ee\u6807\u5143\u7d20\u7684\u76d1\u542c\u5668&#xff08;\u6309\u6ce8\u518c\u987a\u5e8f&#xff0c;\u5148\u6355\u83b7\u540e\u5192\u6ce1&#xff09;<\/p>\n<p>\u5192\u6ce1\u9636\u6bb5\u662f\u4ece\u5185\u5230\u5916<\/p>\n<\/p>\n<p>\u56de\u5f52\u95ee\u9898\u00a0<\/p>\n<li>\n<p>\u5192\u6ce1\u9636\u6bb5\u7684\u00a0stopPropagation()\u00a0\u53ef\u963b\u6b62\u7236\u5143\u7d20\u89e6\u53d1\u3002<\/p>\n<\/li>\n<li>\n<p>\u6355\u83b7\u9636\u6bb5\u7684\u00a0stopPropagation()\u00a0\u53ef\u963b\u6b62\u5b50\u5143\u7d20\u89e6\u53d1<\/p>\n<\/li>\n<p>\u5dee\u4e0d\u591a\u6d4b\u8bd5\u5b8c\u5c31\u660e\u767d \u4e8b\u4ef6\u5192\u6ce1\u7684\u539f\u7406\u4e86\u00a0 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