标签：
使用DHTML技术实现的简单windows计算器，界面是简陋了点，不过功能倒是挺可爱，不但可以轻松实现加减乘除运算，还可以实现MC/MR /MS/M+等数字运算功能，本代码在ie8、ff下css有点乱，建议用ie6观看，也请高手修改一下在ie8、ff下显示不正常的毛病。
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE>DHTML实现简单的windows计算器丨Daniel wellington官网</TITLE> <style> body{ margin:0px auto; } .border{ border:1px; border-color:#30F; border-style:solid; } .aniu{ width:60px; height:30px; ; } .aniu_s{ width:50px; height:30px } .aniu_top{ width:84px; height:30px } .aniu_color{ color:red; } .aniu_color_s{ color:#00F; } #content{ width:330px; } #menu{ width:330px; height:50px; margin:0px auto; line-height:50px; font-size:1cm; color:#30F; } #left{ width:60px; height:180px; float:left; } #right{ width:252px; height:180px; float:right; } .text{ width:330px; height:30px; } .leftmenu{ height:30px; widht:50px; } </style> </HEAD> <script language="javascript"> function closeMain(){ var closeMain = document.getElementById(‘main‘); var getMin = document.getElementById(‘getMin‘); if(closeMain.style.display == ‘block‘){ closeMain.style.display = ‘none‘; getMin.value = ‘最大化‘; getMin.style.color = ‘red‘; return false; } else{ closeMain.style.display = ‘block‘; getMin.value = ‘最小化‘; getMin.style.color = ‘#8BB9E2‘; return true; } } //window.onload = closeMain; function closeCalc(){ var calc = document.getElementById(‘calc‘); if(calc.style.display == ‘block‘) { calc.style.display = ‘none‘; } } </script> <BODY> <div id="content" class="border"> <div id="menu" align="center"> <strong>Daniel wellington官网</strong> </div> <form action="" name="keypad"> <div class="text"> <input type="text" name="readout" value="0" readonly class="text"> </div> <div align="right"> <button class="aniu_top aniu_color" onClick="backspace()"> Backspace</button> <button class="aniu_top aniu_color" onClick="ce()"> CE</button> <button class="aniu_top aniu_color" onClick="cleartext()"> C</button> </div> <div id="left" class="leftmenu"> <button class="aniu aniu_color" > MC</button><br/> <button class="aniu aniu_color" > MR</button><br/> <button class="aniu aniu_color" > MS</button><br/> <button class="aniu aniu_color" > M+</button><br/> </div> <div id="right" > <button class="aniu_s aniu_color_s" onClick="numP(7)"> 7</button> <button class="aniu_s aniu_color_s" onClick="numP(8)"> 8</button> <button class="aniu_s aniu_color_s" onClick="numP(9)"> 9</button> <button class="aniu_s aniu_color" onClick="operation(‘/‘)"> /</button> <button class="aniu_s aniu_color_s" > sqrt</button> <button class="aniu_s aniu_color_s" onClick="numP(4)"> 4</button> <button class="aniu_s aniu_color_s" onClick="numP(5)"> 5</button> <button class="aniu_s aniu_color_s" onClick="numP(6)"> 6</button> <button class="aniu_s aniu_color" onClick="operation(‘*‘)"> *</button> <button class="aniu_s aniu_color_s" > %</button> <button class="aniu_s aniu_color_s" onClick="numP(1)"> 1</button> <button class="aniu_s aniu_color_s" onClick="numP(2)"> 2</button> <button class="aniu_s aniu_color_s" onClick="numP(3)"> 3</button> <button class="aniu_s aniu_color" onClick="operation(‘-‘)"> -</button> <button class="aniu_s aniu_color_s" > 1/x</button> <button class="aniu_s aniu_color_s" onClick="numP(0)"> 0</button> <button class="aniu_s aniu_color_s" > +/-</button> <button class="aniu_s aniu_color_s" onClick="dian()"> .</button> <button class="aniu_s aniu_color" onClick="operation(‘+‘)"> +</button> <button class="aniu_s aniu_color" onClick="operation(‘=‘)"> =</button> </div> </form> </div> <script> fkeypad = document.forms[‘keypad‘] var lastcommand=""; var result=0; var start=false; /*输入0判断*/ function numP(num){ if(start){ fkeypad.readout.value="0"; start=false; } if(fkeypad.readout.value==‘0‘){ fkeypad.readout.value=num }else{ fkeypad.readout.value+=num; } } /*点的判断*/ function dian(){ var curout = fkeypad.readout.value; if(curout.indexOf(".")==-1){ curout+="." } fkeypad.readout.value = curout; } /*backspace*/ function backspace(){ var space = fkeypad.readout.value; if(space.length ==1){ }else fkeypad.readout.value = space.substr(0,space.length-1); } /*clear清除按钮*/ function cleartext(){ fkeypad.readout.value = "0"; } /*计算*/ function operation(command){ var i=fkeypad.readout.value; calculate(parseFloat(i)); lastcommand = command; start=true; } function calculate(x){ switch(lastcommand) { case"+": result+=x; break; case "-": result -= x; break; case "*": result *= x; break; case "/": result /= x; break; default: result=x; } fkeypad.readout.value=result; } function ce(){ fkeypad.readout.value = "0"; result="0"; } </script> </BODY> </HTML> <br><br><hr>
标签：
原文地址：http://www.cnblogs.com/youtianxia/p/4722708.html
