JavaScript代码: html代码: ...
js代码如下: <script language="JavaScript" type="text/javascript"> function clearNoNum(obj){ obj.value = obj.value.replace(/[^\d.]/g ...
转载自:http://blog.csdn.net/u012402177/article/details/52587649 ...
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> &l ...
<input type="text" placeholder="保留到小数点后两位" maxlength="200" onkeyup="num(this)" onpaste="num(this)" /> //输入和黏贴操作时触发 //小数点后两位 function num ...