📄 计算器程序.html

📁 JavaScript实例

💻 HTML

字号:

<html>
<head><title>Calculator</title>
<script language="JavaScript">
var inputString="";
function updateString(value)
{inputString+=value;
document.Calculator.Input.value=inputString;
}
</script>
</head>
<body>
<center>
<form name="Calculator">
<input type="text" name="Input"  size="22">
<br>
<input type="button" name="plus" value="+" onClick="updateString('+')">
<input type="button" name="minus" value="-" onClick="updateString('-')">
<input type="button" name="times" value="*" onClick="updateString('*')">
<input type="button" name="div" value="/" onClick="updateString('/')"><br>
<br>
<input type="button" name="zero" value="0" onClick="updateString('0')">
<input type="button" name="one" value="1" onClick="updateString('1')">
<input type="button" name="two" value="2" onClick="updateString('2')">
<input type="button" name="three" value="3" onClick="updateString('3')">
<input type="button" name="four" value="4" onClick="updateString('4')">
<br>
<input type="button" name="five" value="5" onClick="updateString('5')">
<input type="button" name="six" value="6" onClick="updateString('6')">
<input type="button" name="seven" value="7" onClick="updateString('7')">
<input type="button" name="eight" value="8" onClick="updateString('8')">
<input type="button" name="nine" value="9" onClick="updateString('9')">
<br>
<input type="button" name="point" value="." onClick="updateString('.')">
<input type="button" name="clear" value="Clear" onClick="Input.value="; inputString="">
<input type="button" name="Calc" value="=" onClick="Input.value=eval(inputString);">
<br><br><br><br><br>
<input type="button" name="Quit" value="Click here to close this window" onClick="self.close();">
</form>
</center>

</body>
</html>

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