{"id":27687,"date":"2024-11-24T14:46:32","date_gmt":"2024-11-24T06:46:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/27687\/"},"modified":"2024-11-24T14:46:32","modified_gmt":"2024-11-24T06:46:32","slug":"html-textarea-%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%ba%af%e6%95%b0%e5%ad%97%e8%87%aa%e5%8a%a8%e6%8d%a2%e8%a1%8c%e5%b9%b6%e5%8e%bb%e9%99%a4%e5%b0%be%e6%95%b0-0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27687\/","title":{"rendered":"HTML Textarea \u5982\u4f55\u5b9e\u73b0\u7eaf\u6570\u5b57\u81ea\u52a8\u6362\u884c\u5e76\u53bb\u9664\u5c3e\u6570 0\uff1f"},"content":{"rendered":"

\"HTML<\/p>\n

html \u5b9e\u73b0\u7eaf\u6570\u5b57\u81ea\u52a8\u6362\u884c\u548c\u53bb\u6389\u5c3e\u6570 0 \u7684 number textarea<\/strong><\/p>\n

\u5982\u4f55\u4f7f\u7528 HTML \u521b\u5efa\u4e00\u4e2a\u53ea\u80fd\u8f93\u5165\u7eaf\u6570\u5b57\u7684 textarea\uff0c\u5e76\u4e14\u80fd\u591f\u81ea\u52a8\u6362\u884c\u8fc7\u957f\u7684\u6570\u5b57\u5e76\u53bb\u9664\u5c3e\u6570 0\uff1f<\/p>\n

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\u5728 Vue \u4e2d\u4f7f\u7528 ref \u6765\u7ba1\u7406\u4e24\u4e2a\u503c\uff1atextarea_number_data<\/strong> \u7528\u4e8e\u5b58\u50a8\u5b9e\u9645\u7684\u6570\u5b57\u503c\uff0c\u800c textarea_number<\/strong> \u7528\u4e8e\u663e\u793a\u6570\u5b57\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

const textarea_number_data = ref();\nconst textarea_number = ref();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
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const keyupNumber = () => {\n    \/\/ \u79fb\u9664\u6240\u6709\u975e\u6570\u5b57\u548c\u91cd\u590d\u7684\u5c0f\u6570\u70b9\n    textarea_number_data.value = textarea_number_data.value.replace(\/[^d.]\/g, \"\").replace(\/.(?=.*.)\/g, \"\");\n\n    \/\/ \u6309\u516d\u4f4d\u4e00\u7ec4\u5c06\u6570\u5b57\u62c6\u5206\u4e3a\u591a\u884c\n    textarea_number.value = textarea_number_data.value.match(\/.{1,6}\/g).join(\"\n\");\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
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\u63a5\u4e0b\u6765\uff0c\u5728\u6a21\u677f\u4e2d\u4f7f\u7528 v-model \u5c06 textarea_number \u4e0e textarea \u7ed1\u5b9a\uff0c\u5e76\u5728 textarea \u4e0a\u6dfb\u52a0 keyup \u4e8b\u4ef6\u76d1\u542c\u5668\uff1a<\/p>\n
<textarea v-model=\"textarea_number\" @keyup=\"keyupNumber()\"><\/textarea><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
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\u4ee5\u4e0a\u5c31\u662fHTML Textarea \u5982\u4f55\u5b9e\u73b0\u7eaf\u6570\u5b57\u81ea\u52a8\u6362\u884c\u5e76\u53bb\u9664\u5c3e\u6570 0\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":"
html \u5b9e\u73b0\u7eaf\u6570\u5b57\u81ea\u52a8\u6362\u884c\u548c\u53bb\u6389\u5c3e\u6570 0 \u7684 number textarea \u5982\u4f55\u4f7f\u7528 HTML \u521b\u5efa\u4e00\u4e2a\u53ea\u80fd\u8f93\u5165\u7eaf\u6570\u5b57\u7684 textarea\uff0c\u5e76\u4e14\u80fd\u591f\u81ea\u52a8\u6362\u884c\u8fc7\u957f\u7684\u6570\u5b57\u5e76\u53bb\u9664\u5c3e\u6570 0\uff1f \u95ee\u9898\u89e3\u51b3\u65b9\u6848 \u8981\u5b9e\u73b0\u6b64\u529f\u80fd\uff0c\u53ef\u4ee5\u5229\u7528 JavaScript \u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u7684\u89e3\u51b3\u65b9\u6848\uff1a \u5728 Vue \u4e2d\u4f7f\u7528 ref \u6765\u7ba1\u7406\u4e24\u4e2a\u503c\uff1atextarea_number_data \u7528\u4e8e\u5b58\u50a8\u5b9e\u9645\u7684\u6570\u5b57\u503c\uff0c\u800c textarea_number \u7528\u4e8e\u663e\u793a\u6570\u5b57\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b const textarea_number_data = ref(); const textarea_number = ref(); \u767b\u5f55\u540e\u590d\u5236 \u6dfb\u52a0 keyup \u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5728\u7528\u6237\u952e\u5165\u65f6\u89e6\u53d1\u4ee5\u4e0b\u51fd\u6570\uff1a const keyupNumber = () => { \/\/ \u79fb\u9664\u6240\u6709\u975e\u6570\u5b57\u548c\u91cd\u590d\u7684\u5c0f\u6570\u70b9 textarea_number_data.value = textarea_number_data.value.replace(\/[^d.]\/g, “”).replace(\/.(?=.*.)\/g, “”); \/\/ \u6309\u516d\u4f4d\u4e00\u7ec4\u5c06\u6570\u5b57\u62c6\u5206\u4e3a\u591a\u884c textarea_number.value = textarea_number_data.value.match(\/.{1,6}\/g).join(” “); […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-27687","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=27687"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27687\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}