4,只能输入字母和汉字 <input onkeyup="value=value.replace(/[\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[\d]/g,''))" maxlength=10 name="Numbers"> 5.只能输入英文字母和数字,不能输入中文 <input onkeyup="value=value.replace(/[^\w\.\/]...
<inputreadonlyvalue="只能显示,不能修改">只能输数字,判断按键的值<script language=javascript>functiononlyNum(){if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)||(event.keyCode==8)))event.returnValue=false;}</script><input οnkeydοwn="onlyNum();"> ...
<div id="wrap"> 数值:<input id="mc" onkeydown="return onlyNumbers(window.event)"/> </div>
Supported common attributesautocomplete,list,placeholder,readonly IDL attributeslist,value,valueAsNumber DOM interfaceHTMLInputElement Methodsselect(),stepUp(),stepDown() Implicit ARIA Rolespinbutton Specifications Specification HTML Standard #number-state-(type=number) ...
readonly:布尔值。表示控件是否可以编辑。【只读的表单元素将会一起提交】 required:布尔值。表示此值为必填项或提交前必须检查该值。 案例: <!DOCTYPE html><html><head><title>input中type为text</title></head><body><form><div><labelfor="uname1">username1:</label><inputtype="text"id="uname1">...
https://stackoverflow.com/questions/469357/html-text-input-allow-only-numeric-input (added in 20200813) 代码语言:javascript 复制 // 输入大小写字母、数字、下划线:<input type="text"οnkeyup="this.value=this.value.replace(/[^\w_]/g,'');">// 输入小写字母、数字、下划线:<input type="text...
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Learn about the HTMLInputElement interface, including its properties and methods, specifications and browser compatibility.
tel: Intended for telephone numbers, though it's similar to a text input and accepts any text input. url: Specifically for URLs, providing validation for proper URL format. HTML Input Tag Attributes HTML<input>tags can accept a variety of attributes to define their behavior, appearance, and ...