<!DOCTYPE html>
<html>
<head>
<meta charset=”utf-8″>
<title></title>
</head>
<body>
<script type=”text/javascript”>
//简易计算器
function conuter(number) {
switch (number) {
case “1”:
var number1 = Number(prompt(“请输入第一个数字：”));
var number2 = Number(prompt(“请输入第二个数字：”));
var result = number1 + number2;
alert(“结果是” + result);
break;
case “2”:
var number1 = Number(prompt(“请输入第一个数字：”));
var number2 = Number(prompt(“请输入第二个数字：”));
var result = number1 – number2;
alert(“结果是” + result);
break;
case “3”:
var number1 = Number(prompt(“请输入第一个数字：”));
var number2 = Number(prompt(“请输入第二个数字：”));
var result = number1 * number2;
alert(“结果是” + result);
break;
case “4”:
var number1 = Number(prompt(“请输入第一个数字：”));
var number2 = Number(prompt(“请输入第二个数字：”));
var result = number1 / number2;
alert(“结果是” + result);
break;
}
}
var number = prompt(“欢迎使用简易计算器\n1.加法运算;\n2.减法运算;\n3.乘法运算;\n4.除法运算;\n5.退出;\n请输入你的选项：”);
while (number != 5) {
conuter(number);
var number = prompt(“欢迎使用简易计算器\n1.加法运算;\n2.减法运算;\n3.乘法运算;\n4.除法运算;\n5.退出;\n请输入你的选项：”);
}
</script>
</script>
</body>
</html>
原文地址：http://www.cnblogs.com/c1048101786/p/16921946.html
