***计数转换***windows式样的计算器
把下列代码加到网页的<body></body>标签之间 从google下载我的照片管理软件要完成此效果需要两个步骤
第一步：把如下代码加入到<head>区域中
<style type="text/css">
<!--
body {font-family: helvetica}
p {font-size: 12pt}
.red {color: red}
.blue {color: blue}
-->
</style>
<script language="javascript">
<!-- begin
var memory = 0;
var number1 = "";
var number2 = "";
var newnumber = "blank";
var opvalue = "";
function display(displaynumber) {
document.calculator.answer.value = displaynumber;
}
function memoryclear() {
memory = 0;
document.calculator.mem.value = "";
}
function memoryrecall(answer) {
if(newnumber != "blank") {
number2 += answer;
} else {
number1 = answer;
}
newnumber = "blank";
display(answer);
}
function memorysubtract(answer) {
memory = memory - eval(answer);
}
function memoryadd(answer) {
memory = memory + eval(answer);
document.calculator.mem.value = " m ";
newnumber = "blank";
}
function clearcalc() {
number1 = "";
number2 = "";
newnumber = "blank";
display("");
}
function backspace(answer) {
answerlength = answer.length;
answer = answer.substring(0, answerlength - 1);
if (number2 != "") {
number2 = answer.tostring();
display(number2);
} else {
number1 = answer.tostring();
display(number1);
}
}
function cecalc() {
number2 = "";
newnumber = "yes";
display("");
}
function checknumber(answer) {
if(answer == ".") {
number = document.calculator.answer.value;
if(number.indexof(".") != -1) {
answer = "";
}
}
if(newnumber == "yes") {
number2 += answer;
display(number2);
}
else {
if(newnumber == "blank") {
number1 = answer;
number2 = "";
newnumber = "no";
}
else {
number1 += answer;
}
display(number1);
}
}
function addbutton(x) {
if(x == 1) equalbutton();
if(number2 != "") {
number1 = parsefloat(number1) + parsefloat(number2);
}
newnumber = "yes";
opvalue = '+';
display(number1);
}
function subbutton(x) {
if(x == 1) equalbutton();
if(number2 != "") {
number1 = parsefloat(number1) - parsefloat(number2);
}
newnumber = "yes";
opvalue = '-';
display(number1);
}
function multbutton(x) {
if(x == 1) equalbutton();
if(number2 != "") {
number1 = parsefloat(number1) * parsefloat(number2);
}
newnumber = "yes";
opvalue = '*';
display(number1);
}
function divbutton(x) {
if(x == 1) equalbutton();
if(number2 != "") {
number1 = parsefloat(number1) / parsefloat(number2);
}
newnumber = "yes";
opvalue = '/';
display(number1);
}
function sqrtbutton() {
number1 = math.sqrt(number1);
newnumber = "blank";
display(number1);
}
function percentbutton() {
if(newnumber != "blank") {
number2 *= .01;
newnumber = "blank";
display(number2);
}
}
function recipbutton() {
number1 = 1/number1;
newnumber = "blank";
display(number1);
}
function negatebutton() {
number1 = parsefloat(-number1);
newnumber = "no";
display(number1);
}
function equalbutton() {
if(opvalue == '+') addbutton(0);
if(opvalue == '-') subbutton(0);
if(opvalue == '*') multbutton(0);
if(opvalue == '/') divbutton(0);
number2 = "";
opvalue = "";
}
//end -->
</script>
第二步：把如下代码加入到<body>区域中
<center>
<form name="calculator">
<table bgcolor="#aaaaaa" width=220>
<tr><td>
<table bgcolor="#cccccc" border=1>
<tr><td>
<table border=0 cellpadding=0>
<tr>
<td bgcolor="#000080">
<div align="center"><b style="color:white">javascript fairyland</b></div>
</td>
</tr>
<tr><td>
<table width="100%" border=0>
<tr><td colspan=6><input type="text" name="answer" size=30 maxlength=30 onchange="checknumber(this.value)"></td></tr>
<tr><td colspan=6>
<table border=0 cellpadding=0>
<tr><td>
<input type="text" name="mem" size=3 maxlength=3> <input type="button" name="backspace" class="red" value="backspace" onclick="backspace(document.calculator.answer.value); return false;"> <input type="button" name="ce" class="red" value=" ce " onclick="cecalc(); return false;"> <input type="reset" name="c" class="red" value="c" onclick="clearcalc(); return false;">
</td></tr>
</table>
</td></tr>
<tr><td><input type="button" name="mc" class="red" value=" mc " onclick="memoryclear(); return false;"></td>
<td><input type="button" name="calc7" class="blue" value="7" onclick="checknumber('7'); return false;"></td>
<td><input type="button" name="calc8" class="blue" value="8" onclick="checknumber('8'); return false;"></td>
<td><input type="button" name="calc9" class="blue" value="9" onclick="checknumber('9'); return false;"></td>
<td><input type="button" name="divide" class="red" value="/" onclick="divbutton(1); return false;"></td>
<td><input type="button" name="sqrt" class="blue" value="sqrt" onclick="sqrtbutton(); return false;"></td></tr>
<tr><td><input type="button" name="mr" class="red" value=" mr " onclick="memoryrecall(memory); return false;"></td>
<td><input type="button" name="calc4" class="blue" value="4" onclick="checknumber('4'); return false;"></td>
<td><input type="button" name="calc5" class="blue" value="5" onclick="checknumber('5'); return false;"></td>
<td><input type="button" name="calc6" class="blue" value="6" onclick="checknumber('6'); return false;"></td>
<td><input type="button" name="multiply" class="red" value="*" onclick="multbutton(1); return false;"></td>
<td><input type="button" name="percent" class="blue" value=" %" onclick="percentbutton(); return false;"></td></tr>
<tr><td><input type="button" name="ms" class="red" value=" ms " onclick="memorysubtract(document.calculator.answer.value); return false;"></td>
<td><input type="button" name="calc1" class="blue" value="1" onclick="checknumber('1'); return false;"></td>
<td><input type="button" name="calc2" class="blue" value="2" onclick="checknumber('2'); return false;"></td>
<td><input type="button" name="calc3" class="blue" value="3" onclick="checknumber('3'); return false;"></td>
<td><input type="button" name="minus" class="red" value="-" onclick="subbutton(1); return false;"></td>
<td><input type="button" name="recip" class="blue" value="1/x " onclick="recipbutton(); return false;"></td></tr>
<tr><td><input type="button" name="mplus" class="red" value=" m+" onclick="memoryadd(document.calculator.answer.value); return false;"></td>
<td><input type="button" name="calc0" class="blue" value="0" onclick="checknumber('0'); return false;"></td>
<td><input type="button" name="negate" class="blue" value="+/- " onclick="negatebutton(); return false;"></td>
<td><input type="button" name="dot" class="blue" value=". " onclick="checknumber('.'); return false;"></td>
<td><input type="button" name="plus" class="red" value=" +" onclick="addbutton(1); return false;"></td>
<td><input type="button" name="equal" class="red" value="= " onclick="equalbutton(); return false;"></td>
</tr>
</table>
</td></tr>
</table>
</td></tr>
</table>
</td></tr>
</table>
</form>
</center>
--------------------------------------
拥有三人行论坛管理系列软件，一个人就可以管理一个论坛的更新维护。还能使您的论坛有千人在线的真实火暴效果，让您不在为论坛因没有人气而留不住会员而烦恼，使您的论坛早日成为一流的论坛。详情请登陆网站：http://www.cnsrx.cn 三人行论坛管理软件，站长必备的专业好工具。（您使用的是免费版本，购买收费版本后，将不带广告。业务QQ:247216 44985227）
页:
[1]