<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.softwhy.com/" />
<title>简易计算器</title>
<jsp:include page="inc/easyui.jsp"></jsp:include>
<style type="text/css">
button {
font-size: 18px;
font-weight: bold;
width: 75px;
}
</style>
<script type="text/javascript">
var yunSuan = 0;//运算符号，0-无运算;1-加法;2-减法;3-乘法;4-除法
var change = 0;//属于运算符后需要清空上一数值
var num1 = 0;//运算第一个数据
var num2 = 0;//运算第二个数据
var cunChuValue = 0;//存储的数值
$(function() {
$(".number").click(function() {//点击数字触发事件
var num = $(this).attr('name');
var oldValue = $("#jieguo").html();
if (change == 1) {
oldValue = "0";
change = 0;
}
var newValue = "";
if (num == -1) {
oldValue = parseFloat(oldValue);
newValue = oldValue * -1;
} else if (num == ".") {
if (oldValue.indexOf('.') == -1)
newValue = oldValue + ".";
else
newValue = oldValue;
} else {
if (oldValue == 0 && oldValue.indexOf('.') == -1) {
newValue = num;
} else {
newValue = oldValue + num;
}
}
$("#jieguo").html(newValue);
});
$("#qingPing").click(function() {//点击清屏触发事件
$("#jieguo").html("0");
yunSuan = 0;
change = 0;
num1 = 0;
num2 = 0;
});
$("#tuiGe").click(function() {//点击退格触发事件
if (change == 1) {
yunSuan = 0;
change = 0;
}
var value = $("#jieguo").html();
if (value.length == 1) {
$("#jieguo").html("0");
} else {
value = value.substr(0, value.length - 1);
$("#jieguo").html(value);
}
});
$(".yunSuan").click(function() {//点击运算符号触发事件
change = 1;
yuSuan = $(this).attr('name');
var value = $("#jieguo").html();
var dianIndex = value.indexOf(".");
if (dianIndex == value.length) {
value = value.substr(0, value.length - 1);
}
num1 = parseFloat(value);
});
$("#dengYu").click(function() {//点击等于符号触发事件
var value = $("#jieguo").html();
var dianIndex = value.indexOf(".");
if (dianIndex == value.length) {
value = value.substr(0, value.length - 1);
}
num2 = parseFloat(value);
var sum = 0;
if (yuSuan == 1) {
sum = num1 + num2;
} else if (yuSuan == 2) {
sum = num1 - num2;
} else if (yuSuan == 3) {
sum = num1 * num2;
} else if (yuSuan == 4) {
sum = num1 / num2;
} else if (yuSuan == 0 || num1 == 0 || num2 == 0) {
sum = num1 + num2;
}
var re = /^[0-9]+.?[0-9]*$/;
if (re.test(sum)) {
sum = sum.toFixed(2);
}
$("#jieguo").html(sum);
change = 1;
yuSuan = 0;
num1 = 0;
num2 = 0;
});
$("#cunChu").click(function() {//点击存储触发事件
change = 1;
var value = $("#jieguo").html();
var dianIndex = value.indexOf(".");
if (dianIndex == value.length) {
value = value.substr(0, value.length - 1);
}
cunChuValue = parseFloat(value);
});
$("#quCun").click(function() {//点击取存触发事件
change = 1;
$("#jieguo").html(cunChuValue);
});
$("#qingCun").click(function() {//点击清存触发事件
change = 1;
cunChuValue = 0;
});
$("#leiCun").click(function() {//点击累存触发事件
change = 1;
var value = $("#jieguo").html();
var dianIndex = value.indexOf(".");
if (dianIndex == value.length) {
value = value.substr(0, value.length - 1);
}
cunChuValue += parseFloat(value);
});
$("#jiCun").click(function() {//点击积存触发事件
change = 1;
var value = $("#jieguo").html();
var dianIndex = value.indexOf(".");
if (dianIndex == value.length) {
value = value.substr(0, value.length - 1);
}
if (cunChuValue == 0) {
cunChuValue = parseFloat(value);
} else {
cunChuValue = cunChuValue * parseFloat(value);
}
});
});
</script>
</head>
<body>
<table>
<tr>
<td colspan="4">
<div id="jieguo"
style="width: 300px;height: 30px;font-size: 30px;text-align: right;font-weight:bold;color: red;">0</div>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="cunChu"> 存 储 </button>
</td>
<td>
<button id="quCun"> 取 存 </button>
</td>
<td>
<button id="tuiGe"> 退 格 </button>
</td>
<td>
<button id="qingPing"> 清 屏 </button>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="leiCun"> 累 存 </button>
</td>
<td>
<button id="jiCun"> 积 存 </button>
</td>
<td>
<button id="qingCun"> 清 存 </button>
</td>
<td>
<button id="Chuyi" class="yunSuan" name="4"> ÷ </button>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="seven" class="number" name="7"> 7 </button>
</td>
<td>
<button id="eight" class="number" name="8"> 8 </button>
</td>
<td>
<button id="nine" class="number" name="9"> 9 </button>
</td>
<td>
<button id="chengYi" class="yunSuan" name="3"> × </button>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="four" class="number" name="4"> 4 </button>
</td>
<td>
<button id="five" class="number" name="5"> 5 </button>
</td>
<td>
<button id="six" class="number" name="6"> 6 </button>
</td>
<td>
<button id="jianQu" class="yunSuan" name="2"> - </button>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="one" class="number" name="1"> 1 </button>
</td>
<td>
<button id="two" class="number" name="2"> 2 </button>
</td>
<td>
<button id="three" class="number" name="3"> 3 </button>
</td>
<td>
<button id="jiaShang" class="yunSuan" name="1"> + </button>
</td>
</tr>
<tr style="height: 40px;">
<td>
<button id="zero" class="number" name="0"> 0 </button>
</td>
<td>
<button id="dian" class="number" name="."> . </button>
</td>
<td>
<button id="*" class="number" name="-1"> +/- </button>
</td>
<td>
<button id="dengYu"> = </button>
</td>
</tr>
</table>
</body>
</html>
计算器样式布局有所借鉴，代码均为原创，未经授权禁止转载；内容未经过严格测试，如遇BUG欢迎提出，谢谢！