网页计算器一个JS计算器

软件编程
2026-01-11 15:09:34

一个挺小的JavaScript网页计算器，界面美化的我想还是不错的，毕竟在没有使用任何图片修饰的情况下，很好看，而且功能挺实用，可以完成基本的数学算数运算，点击“运行代码”可以运行一下看效果。

<html> <head> <title>计算器</title>  <style> button {width:40; border: 1 solid #808080;background-color: #FFFFFF} </style> </head> <body> <FORM NAME="Calc"> <TABLE BORDER=4 bordercolorlight="#808080" bordercolor="#808080" width="250" height="38"><TR><TD width="291" height="39" bgcolor="#C0C0C0"> &nbsp; <INPUT TYPE="text" NAME="Input" readonly Size="21" style="background-color: #F5F5F5; font-family: Arial; border: 1 solid #000000">&nbsp <button NAME="back" OnClick="backspace()">←</button> </TD></TR><TR><TD width="291" height="38"> <table border="0" width="100%" height="105" cellpadding="0"> <tr> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="1" OnClick="addoperator()">1</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="2" OnClick="addoperator()">2</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="3" OnClick="addoperator()">3</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="+" OnClick="addoperator()">+</BUTTON> </td> </tr> <tr> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="4" OnClick="addoperator()">4</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="5" OnClick="addoperator()">5</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="6" OnClick="addoperator()">6</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="-" OnClick="addoperator()">-</BUTTON> </td> </tr> <tr> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="7" OnClick="addoperator()">7</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="8" OnClick="addoperator()">8</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="9" OnClick="addoperator()">9</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="*" OnClick="addoperator()">×</BUTTON> </td> </tr> <tr> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="clear" OnClick="clearinput()">C</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="0" OnClick="addoperator()">0</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="=" OnClick="result()">=</BUTTON> </td> <td width="25%" height="31" align="center" bgcolor="#C0C0C0"> <BUTTON NAME="/" OnClick="addoperator()">÷</BUTTON> </td> </tr> </table> </TD></TR> </TABLE> </FORM> </body> </html>