摘要： 只能输入0-9多包括小数点htmlheadmeta http-equiv="content-Type" content="text/html;charset=gb2312"titlejs 只能输入数字和小数点/titlescript language="JavaScript" type="text/javascript"function clearNoNum(obj){obj.value = obj.value.replace(/[^\d.]/g,""); //清除“数字”和“.”以外的字符obj.value = obj.value.replace(/^\./g,"") 阅读全文

摘要： 只能输入数字多种方法<input onkeyup="this.value=this.value.replace(/\D/g,'')" onafterpaste="this.value=this.value.replace(/\D/g,'')">try:<input name=txt1 onchange="if(/\D/.test(this.value)){alert('只能输入数字');this.value='';}">try:<input 阅读全文