{"id":52423,"date":"2024-12-03T11:21:53","date_gmt":"2024-12-03T03:21:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52423\/"},"modified":"2024-12-03T11:21:53","modified_gmt":"2024-12-03T03:21:53","slug":"javascript%e4%b8%ad%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a1%ae%e8%8e%b7%e5%8f%96textarea%e5%85%83%e7%b4%a0%e7%9a%84%e5%80%bc%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52423\/","title":{"rendered":"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f <\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f \u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241120\/1732092720673da33098760.jpg\" class=\"aligncenter\" title=\"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f\u63d2\u56fe\" alt=\"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>JavaScript\u4e2dtextarea\u5143\u7d20\u7684\u503c\u83b7\u53d6\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4f7f\u7528innerHTML\u83b7\u53d6\u4e3a\u7a7a\u503c\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3ainnerHTML\u4ec5\u9002\u7528\u4e8e\u5177\u6709\u5185\u90e8HTML\u5185\u5bb9\u7684DOM\u5143\u7d20\uff0c\u4f8b\u5982&lt;div&gt;\u548c&lt;span&gt;\uff0c\u800c\u4e0d\u9002\u7528\u4e8etextarea\u7b49\u8868\u5355\u63a7\u4ef6\u7c7b\u5143\u7d20\u3002<\/p>\n<p>\u6839\u636e\u6587\u6863\u7ea6\u5b9a\uff0c\u8868\u5355\u63a7\u4ef6\u7c7b\u7684\u53d6\u503c\u5e94\u4f7f\u7528.value\u5c5e\u6027\u3002\u56e0\u6b64\uff0c\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u7684\u6b63\u786e\u65b9\u6cd5\u4e3a\uff1a<\/p>\n<pre>var info = text.value;<\/pre>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u4f7f\u7528innerHTML\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u4e0d\u751f\u6548\uff0c\u662f\u56e0\u4e3atextarea\u662fWeb Components\u7ec4\u4ef6\uff0c\u5176\u5185\u90e8\u4f7f\u7528\u4e86Shadow DOM\u3002\u867d\u7136\u4f60\u53ef\u4ee5\u5728\u5ba1\u67e5\u5143\u7d20\u65f6\u770b\u5230\u6dfb\u52a0\u4e86\u503c\uff0c\u4f46\u9875\u9762\u4e0d\u4f1a\u663e\u793a\uff0c\u56e0\u4e3aShadow DOM\u5185\u90e8\u6709\u81ea\u5df1\u7684DOM\u5b9e\u73b0\u903b\u8f91\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f \u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   display: inline-block \u5143\u7d20\u91cd\u53e0\uff1a\u4e3a\u4ec0\u4e48\u6211\u7684\u5143\u7d20\u4f1a\u4e92\u76f8\u8986\u76d6\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f \u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f \u300b\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01 JavaScript\u4e2dtextarea\u5143\u7d20\u7684\u503c\u83b7\u53d6\u65b9\u6cd5 \u5728\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4f7f\u7528innerHTML\u83b7\u53d6\u4e3a\u7a7a\u503c\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3ainnerHTML\u4ec5\u9002\u7528\u4e8e\u5177\u6709\u5185\u90e8HTML\u5185\u5bb9\u7684DOM\u5143\u7d20\uff0c\u4f8b\u5982&lt;div&gt;\u548c&lt;span&gt;\uff0c\u800c\u4e0d\u9002\u7528\u4e8etextarea\u7b49\u8868\u5355\u63a7\u4ef6\u7c7b\u5143\u7d20\u3002 \u6839\u636e\u6587\u6863\u7ea6\u5b9a\uff0c\u8868\u5355\u63a7\u4ef6\u7c7b\u7684\u53d6\u503c\u5e94\u4f7f\u7528.value\u5c5e\u6027\u3002\u56e0\u6b64\uff0c\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u7684\u6b63\u786e\u65b9\u6cd5\u4e3a\uff1a var info = text.value; \u53e6\u4e00\u65b9\u9762\uff0c\u4f7f\u7528innerHTML\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\u4e0d\u751f\u6548\uff0c\u662f\u56e0\u4e3atextarea\u662fWeb Components\u7ec4\u4ef6\uff0c\u5176\u5185\u90e8\u4f7f\u7528\u4e86Shadow DOM\u3002\u867d\u7136\u4f60\u53ef\u4ee5\u5728\u5ba1\u67e5\u5143\u7d20\u65f6\u770b\u5230\u6dfb\u52a0\u4e86\u503c\uff0c\u4f46\u9875\u9762\u4e0d\u4f1a\u663e\u793a\uff0c\u56e0\u4e3aShadow DOM\u5185\u90e8\u6709\u81ea\u5df1\u7684DOM\u5b9e\u73b0\u903b\u8f91\u3002 \u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u83b7\u53d6textarea\u5143\u7d20\u7684\u503c\uff1f \u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01 display: inline-block 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