{"id":28155,"date":"2024-11-24T16:24:50","date_gmt":"2024-11-24T08:24:50","guid":{"rendered":"https:\/\/fwq.ai\/blog\/28155\/"},"modified":"2024-11-24T16:24:50","modified_gmt":"2024-11-24T08:24:50","slug":"javascript%e4%b8%ad%e8%8e%b7%e5%8f%96textarea%e5%85%83%e7%b4%a0%e5%80%bc%e7%9a%84%e6%96%b9%e6%b3%95%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/28155\/","title":{"rendered":"JavaScript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173141266830266.jpg\" class=\"aligncenter\" title=\"JavaScript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f\u63d2\u56fe\" alt=\"JavaScript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>javascript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u5f0f<\/strong><\/p>\n<p>\u5728JavaScript\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1a<\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 .value \u5c5e\u6027<\/strong><\/p>\n<pre>var info = text.value;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u4ecetextarea\u5143\u7d20\u4e2d\u63d0\u53d6\u5176\u6587\u672c\u5185\u5bb9\u3002<\/p>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 .innerHTML \u5c5e\u6027<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>var info = text.innerHTML;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6textarea\u5143\u7d20\u5185\u90e8\u7684\u6240\u6709HTML\u5185\u5bb9\uff0c\u5305\u62ec\u6587\u672c\u3001\u6362\u884c\u7b26\u548c\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5bf9\u4e8etextarea\u5143\u7d20\uff0c<strong>\u63a8\u8350\u4f7f\u7528 .value \u5c5e\u6027\u83b7\u53d6\u5176\u503c<\/strong>\u3002\u56e0\u4e3a\u4f7f\u7528 .innerHTML \u5c5e\u6027\u83b7\u53d6\u503c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5f02\u5e38\u3002<\/p>\n<p><strong>\u65b9\u6cd5\u4e8c\u5931\u6548\u7684\u539f\u56e0<\/strong><\/p>\n<p>innerHTML\u901a\u5e38\u7528\u4e8e\u83b7\u53d6\u5177\u6709\u5185\u90e8HTML\u5185\u5bb9\u7684\u5143\u7d20\u7684\u503c\uff0c\u4f8b\u5982<\/p>\n<p> }\u548c<br \/>\n<span>}\u3002\u4f46\u662f\uff0ctextarea\u5143\u7d20\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u5143\u7d20\uff0c\u5b83\u4f7f\u7528\u4e86\u5f71\u5b50DOM\u6765\u5904\u7406\u5176\u5185\u90e8\u5185\u5bb9\u3002<\/p>\n<p>\u5f71\u5b50DOM\u662f\u4e00\u79cd\u5c06\u5143\u7d20\u7684\u5185\u90e8\u5185\u5bb9\u4e0e\u9875\u9762\u4e0a\u7684\u5176\u4ed6\u90e8\u5206\u9694\u79bb\u5f00\u7684\u6280\u672f\u3002\u8fd9\u610f\u5473\u7740\u4f7f\u7528innerHTML\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u65e0\u6548\uff0c\u56e0\u4e3a\u5b83\u53ea\u80fd\u8bbf\u95ee\u5143\u7d20\u7684\u516c\u5f00DOM\uff0c\u800c\u4e0d\u80fd\u8bbf\u95ee\u5f71\u5b50DOM\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<p><\/span> <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJavaScript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>javascript\u4e2d\u83b7\u53d6textarea\u5143\u7d20\u503c\u7684\u65b9\u5f0f \u5728JavaScript\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1a \u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 .value \u5c5e\u6027 var info = text.value; 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