js正则表达式限制文本框只能输入数字,小数点,英文字母

1.文本框只能输入数字代码(小数点也不能输入)

2.只能输入数字,能输小数点.

3.数字和小数点方法二

4.只能输入字母和汉字

5.只能输入英文字母和数字,不能输入中文

6.只能输入数字和英文chun

7.小数点后只能有最多两位(数字,中文都可输入),不能输入字母和运算符号:

来源：(/s/blog_5f39f1a50100fr1d.html) - js正则表达式限制文本框只能输入数字,小数点,英文字母_百合怡香_新浪博客
8.小数点后只能有最多两位(数字,字母,中文都可输入),可以输入运算符号:

————————————————————————————————————————

只能输入汉字：

只能输入数字：

只能输入英文和数字：

控制输入框只能输入文字或数字，也可以不允许输入特殊字符
这里不允许输入如下字符: (像 !@#$%^&* 等)

<br><br>只禁止空格输入<br>onkeyup="value=value.replace(/\s/g,'')"<br><br>只能输入中文和英文：<br>onkeyup="value=value.replace(/[^\a-zA-Z\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\a-zA-Z\u4E00-\u9FA5]/g,''))"<br><br></p></div> </div> <div class="article-container" id="loader">  </div> </div> </article> <div class="load-box"> <div class="load-content flex-column-center"> <p class="load-p" id="onLoadMore"> <span id="surplus"></span> <span> <i class="iconfont icon-you right"></i> </span> </p> <b id="load-text">下载文档原格式</b> <p id="load-content" class="ml-mb"></p> <button class="onDownload">下载原文件</button> </div> <div id="downTop"> <div class="reader-tools-bar"> <div class="tools flex-justify"> <a href="javascript:void(0);" title="上一页" class="tools-prev flex-justify"> <i class="iconfont icon-you left"></i> </a> <input type="text" class="page-cur" value="1" /> <span class="page-num"> / 2</span> <a href="javascript:void(0);" title="下一页" class="tools-next flex-justify"> <i class="iconfont icon-you right"></i> </a> </div> <div class="bar-download"> <button class="onDownload">下载本文档</button> </div> </div> </div> </div> <div class="tag"> <ul class="tag-header"> <li> <a href="javascript:;" title="下载提示" data-tab-target="tip" class="" id="onTagDownload"> 下载提示 <i class="iconfont icon-you bottom"></i> </a> </li> <li> <a href="javascript:;" data-tab-target="txt" class="active" id="onTagText">文本预览<i class="iconfont icon-you bottom"></i></a> </li> </ul> <div class="tab-items"> <div class="tab-item tip" data-tab-item="tip"> <div class="list"> <ol> <li>1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。</li> <li>2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。</li> <li>3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。</li> </ol> </div> </div> <div class="tab-item txt active" data-tab-item="txt"> </div> </div> </div> </div> </div>   <div class="theme-list"> <div class="theme-pd content-hg-pd"> <div class="header"> <div class="title"> <h3>相关主题</h3> <i class="bg bg-4"></i> </div> </div> <div class="container"> <ul> <li class="topic"> <a href="/topic/4484343/" target="_blank">常用的正则表达式大全</a> </li> <li class="topic"> <a href="/topic/11118868/" target="_blank">js常用正则表达式</a> </li> <li class="topic"> <a href="/topic/18381246/" target="_blank">常用的js正则表达式</a> </li> <li class="topic"> <a href="/topic/18819970/" target="_blank">js输入框自动提示</a> </li> </ul> </div> </div> </div> </div>  <div class="temp-rg" id="target-element"> <div class="relevant-box temp-mg"> <div class="content" id="side-list"> <div class="header hd-bm hd-scollor"> <div class="title"> <h3>文档推荐</h3> <i class="bg bg-1"></i> </div> </div> <ul class="container-ul"> <li> <div class="ul-doc flex-start"> <i class="icon-txt"></i> <div class="cont-rg flex-column"> <a href="/doc/098948112.html" target="_blank" title="js正则表达式(很全)" class="ul-doc-a text-overflow-clamp">js正则表达式(很全)</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:2</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-doc"></i> <div class="cont-rg flex-column"> <a href="/doc/0210108253.html" target="_blank" title="JS正则表达式大全" class="ul-doc-a text-overflow-clamp">JS正则表达式大全</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:30</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-pptx"></i> <div class="cont-rg flex-column"> <a href="/doc/0b17220555.html" target="_blank" title="正则表达式在前后端的实践应用" class="ul-doc-a text-overflow-clamp">正则表达式在前后端的实践应用</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:30</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-doc"></i> <div class="cont-rg flex-column"> <a href="/doc/1411047999.html" target="_blank" title="js正则表达式使用" class="ul-doc-a text-overflow-clamp">js正则表达式使用</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:13</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-doc"></i> <div class="cont-rg flex-column"> <a href="/doc/1b15484226.html" target="_blank" title="常用正则表达式" class="ul-doc-a text-overflow-clamp">常用正则表达式</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:9</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-docx"></i> <div class="cont-rg flex-column"> <a href="/doc/2f3326339.html" target="_blank" title="js 验证各种格式类型的正则表达式" class="ul-doc-a text-overflow-clamp">js 验证各种格式类型的正则表达式</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:2</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-ppt"></i> <div class="cont-rg flex-column"> <a href="/doc/383160159.html" target="_blank" title="JS正则表达式完整版精品PPT课件" class="ul-doc-a text-overflow-clamp">JS正则表达式完整版精品PPT课件</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:25</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-doc"></i> <div class="cont-rg flex-column"> <a href="/doc/383811431.html" target="_blank" title="正则表达式,js去掉html标记,去掉字符,截取字符" class="ul-doc-a text-overflow-clamp">正则表达式,js去掉html标记,去掉字符,截取字符</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:2</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-txt"></i> <div class="cont-rg flex-column"> <a href="/doc/764034466.html" target="_blank" title="js中正则特殊符号" class="ul-doc-a text-overflow-clamp">js中正则特殊符号</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:8</em> </div> </div> </div> </div> </li> <li> <div class="ul-doc flex-start"> <i class="icon-docx"></i> <div class="cont-rg flex-column"> <a href="/doc/7b13178566.html" target="_blank" title="js复习题库答案(1)" class="ul-doc-a text-overflow-clamp">js复习题库答案(1)</a> <div class="bottom"> <div class="left"> <div class="star star-5"></div> <em>页数:27</em> </div> </div> </div> </div> </li> </ul> </div> </div> <div class="relevant-box"> <div class="content"> <div class="header hd-bm"> <div class="title"> <h3>最新文档</h3> <i class="bg bg-4"></i> </div> </div> <ul class="container-ul"> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/061000073.html" target="_blank" class="new-li-a text-overflow">饭店包间名字大全</a> </li> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/0410001030.html" target="_blank" class="new-li-a text-overflow">word无法创建工作文件,请检查临时环境变量</a> </li> <li class="new-down-li"> <i class="icon-docx"></i> <a href="/doc/0910001458.html" target="_blank" class="new-li-a text-overflow">自行车健身比赛开幕式讲话词</a> </li> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/0a10001469.html" target="_blank" class="new-li-a text-overflow">2018乡村医生个人工作总结</a> </li> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/0110002558.html" target="_blank" class="new-li-a text-overflow">MySQL测试题 SQL</a> </li> <li class="new-down-li"> <i class="icon-ppt"></i> <a href="/doc/0210002568.html" target="_blank" class="new-li-a text-overflow">合勤NXC5200</a> </li> <li class="new-down-li"> <i class="icon-docx"></i> <a href="/doc/0010004833.html" target="_blank" class="new-li-a text-overflow">铁路集中箱空箱调度优化建模案例(案例2)</a> </li> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/0f1000530.html" target="_blank" class="new-li-a text-overflow">微分几何教学大纲-复旦大学数学科学学院</a> </li> <li class="new-down-li"> <i class="icon-doc"></i> <a href="/doc/011000596.html" target="_blank" class="new-li-a text-overflow">人教版九年级数学上册导学案：24.1.1_圆【精品】</a> </li> <li class="new-down-li"> <i class="icon-docx"></i> <a href="/doc/0d10006773.html" target="_blank" class="new-li-a text-overflow">(整容后办护照用)医院整容证明</a> </li> </ul> </div> </div> </div> </div> </div> </main> <script> var sid = 1; var did = "ce3086002"; var docId = 'c2921e1d59eef8c75fbfb3f7'; var totalPage = 2; var ext = 'txt'; var pageNum = '2'; </script> <script src="https://assets.doczj.com/pc/js/render.js"></script> <div class="broadside"> <div class="user-cursor" id="toTop"> <div class="user-about" title="置顶"> <i class="iconfont icon-you bottom"></i> </div> </div> </div> <footer> <div class="container"> <div class="ft-content"> <div class="ft-logo"> <a href="/" target="_blank" title="文档之家" class="flex-column-center"> <img src="https://assets.doczj.com/pc/icon/icon-logo1.png" title="文档之家" /> <p>文档之家</p> </a> </div> <div class="ft-info"> <nav class="footer-nav"> <ul> <li><strong class="ft-block" class="ft-block">关于</strong></li> <li><a href="/about/about-us.html">关于我们</a></li> <li><a href="/about/contact-us.html">联系我们</a></li> </ul> <ul> <li><strong class="ft-block" class="ft-block">版权相关</strong></li> <li><a href="/about/copyright-statement.html">版权声明</a></li> <li><a href="/about/infringement-complaint.html">侵权投诉</a></li> <li><a href="/about/disclaimer.html">免责声明</a></li> </ul> <ul> <li><strong class="ft-block" class="ft-block">网站声明</strong></li> <li><a href="/about/user-agreement.html">用户协议</a></li> <li><a href="/about/privacy-policy.html">隐私政策</a></li> <li><a href="/about/sitemap.html">网站地图</a></li> </ul> <ul> <li><strong class="ft-block" class="ft-block">帮助中心</strong></li> <li><a href="/about/download-instructions.html">下载说明</a></li> <li><a href="/about/download-failure-solution.html">下载失败解决</a></li> <li><a href="/about/redownload-order.html">订单重下载</a></li> </ul> </nav> <div class="ft-side"> <img src="https://assets.doczj.com/pc/images/weixin.jpg" /> <h3>微信客服</h3> </div> </div> </div> </div> <div class="ft-box"> <div class="ft-text"> <p> <a href="https://beian.miit.gov.cn" target="_blank">闽ICP备18022250号-1</a> 文档之家版权所有 - ©2024</p> </div> </div> </footer> <script text="text/javascript" src="https://assets.doczj.com/pc/js/index.js"></script> </body> </html>