input 输入 限制 大全

<el-input   onkeyup="value=value.replace(/[^\d]/g,'')"></el-input>

<el-input type="number"  onkeyup="value=(value*1).toFixed(2)"><el-input>

<input type="text" οnkeyup="this.value=this.value.replace(//s/g,'')" οnpaste="this.value=this.value.replace(//s/g,'')" >

<input type="text" οnkeyup="this.value=this.value.replace(/[^u4e00-u9fa5w]/g,'');">

<input type="text" οnkeyup="value=value.replace(/[^0-9]/g,'')" οnpaste="value=value.replace(/[^0-9]/g,'')" oncontextmenu = "value=value.replace(/[^0-9]/g,'')">

<input οnkeyup="value=value.replace(/[^\0-9\.]/g,'')" οnpaste="value=value.replace(/[^\0-9\.]/g,'')" oncontextmenu = "value=value.replace(/[^\0-9\.]/g,'')">

<input οnkeyup="value=value.replace(/[^\a-\z\A-\Z]/g,'')" οnpaste="value=value.replace(/[^\a-\z\A-\Z]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z]/g,'')">

<input οnkeyup="value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')" οnpaste="value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9]/g,'')">

<input οnkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" οnpaste="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" oncontextmenu = "value=value.replace(/[^\u4E00-\u9FA5]/g,'')">

<input οnkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')" οnpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5]/g,'')">

<input οnkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" οnpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\ ]/g,'')">

<input οnkeyup="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')" οnpaste="value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')" oncontextmenu = "value=value.replace(/[^\a-\z\A-\Z0-9\u4E00-\u9FA5\.]/g,'')">

//验证输入框内不能输入特殊字符,输入就立刻清除
   function cleanSpelChar(th){     
      if(/["'<>%;)(&+]/.test(th.value)){           
      $(th).val(th.value.replace(/["'<>%;)(&+]/,""));     
      } 
  }

//验证输入框内不能输入特殊字符，输入前先作判断
function processSpelChar() {
    var code;
    var character;
    if (document.all) {
        code = window.event.keyCode;
    } else {
        code = arguments.callee.caller.arguments[0].which;
    }
    var character = String.fromCharCode(code);
    var txt = new RegExp(/["'<>%;)(&+]/);
    if (txt.test(character)) {
        if (document.all) {
            window.event.returnValue = false;
        } else {
            arguments.callee.caller.arguments[0].preventDefault();
        }
    }
}

var subject= document.getElementById("subject").value;
subject = subject.replace(/[\-\_\,\.\!\|\~\`\(\)\#\@\%\-\+\=\/\'\$\%\^\&\*\{\}\:\;\"\L\<\>\?\\]/g, ''); 
alert(subject);

<input type='digit' class='n-input' placeholder='请输入充值金额' bindinput="inputedit" adjust-position="true" value="{{moneyNum}}"/>