JS问题乘号怎么打的求解

JavaScript017

JS问题乘号怎么打的求解,第1张

你这里用的是大写字母X啊：1X1=

如果想再好看点可以用全角字符中的×：1×1=

多数输入法都有“软键盘”这个功能，里面找“数学符号”，就有这个乘以号的

有些输入法也可以直接打出来，比如QQ拼音输入法，输入chengyi，就会出现这个×的（同理，输入chuyi就会出现÷）

源代码如下：

<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>js加减乘除计算器代码</title>

<style>

body,ul{ margin:0pxpadding:0px}

body{ background:#AF6332}

li{ list-style:none}

.fl{ float:left}

.fr{ float:right}

.clearfix:after{ content:""display:blockclear:both}

.clearfix{zoom:1}

/*是用inset可以将外部阴影改成内部阴影若要实现内外阴影同时存在，将其并在一行用逗号隔开*/

.calBox{ width:460pxpadding-bottom:10pxbackground:#FDFDFDborder-radius:5pxposition:absoluteleft:50%top:50%margin-left:-230pxmargin-top:-225pxbox-shadow:0px 0px 10px rgba(0,0,0,0.8),0px 0px 10px rgba(0,0,0,0.5) inset-webkit-box-shadow:0px 0px 10px rgba(0,0,0,0.8),0px 0px 10px rgba(0,0,0,0.5) insetbackground:#F9F9F9overflow:hidden}

input{ width:406pxheight:82pxmargin:10px 7px 0pxborder-radius:5pxborder:1px solid #64655Fbox-shadow:0px 5px 2px rgba(157,157,145,0.8) inset-webkit-box-shadow:0px 5px 2px rgba(157,157,145,0.8) insetoutline:nonebackground:#FCFDEBtext-align:rightfont-family:"微软雅黑"font-size:40pxpadding:0px 10px}

ul{}

li{ list-style:nonewidth:74pxheight:34pxline-height:34pxtext-align:centerfont-family:"微软雅黑"border:1px solid #8B8B8Bborder-radius:5pxbackground:url(/jscss/demoimg/201402/calBg) repeat-xfloat:leftmargin:12px 6px 0px}

.one li{ height:44pxbackground:url(/jscss/demoimg/201402/calBg1.jpg) repeat-xline-height:44pxcursor:pointer}

.one .orange{ background:url(/jscss/demoimg/201402/calBg2.jpg) repeat-xborder:1px solid #875733}

.one .black{ background:url(/jscss/demoimg/201402/calBg3.jpg) repeat-xborder:1px solid #363636color:#fff}

.one .gray{ background:url(/jscss/demoimg/201402/calBg4.jpg) repeat-xborder:1px solid #5F6366}

.zero{ width:160px}

.one .deng{ background:url(/jscss/demoimg/201402/calBg5.jpg)height:100px}

.twoBox{ width:353pxoverflow:hidden}

.two{ width:358px}

.calBox .three { margin:0px}

.calu{ padding:0px 10pxwidth:470px}

</style>

<script type="text/javascript">

function findArr(a,c){for(var b=0b<a.lengthb++){if(a[b]==c){return true}}return false}function getClass(d,f){if(document.getElementsByClassName){return d.getElementsByClassName(f)}else{var a=[]var e=document.getElementsByTagName("*")for(var c=0c<e.lengthc++){var b=e[c].className.split(" ")if(findArr(b,f)){a.push(e[c])}}return a}}

window.onload=function()

{

var aNum=getClass(document,'num')

var oText=document.getElementById('text')

var aPer=getClass(document,'oper')

var oPer=document.getElementById('per')

var oText1=document.getElementById('text1')

var oDeng=getClass(document,'deng')[0]

var oSq=getClass(document,'sq')[0]

var oRec=getClass(document,'rec')[0]

var oZheng=getClass(document,'zheng')[0]

var oOn=getClass(document,'on')[0]

var oOff=getClass(document,'off')[0]

var oClea=getClass(document,'clea')[0]

var bOnOrOffClick=false

function fnNum(a)

{

var bClear=false

oText.value='0'

for(var i=0i<aNum.lengthi++)

{

aNum[i].onclick=function()

{

if(!bOnOrOffClick)return

if(bClear)

{

bClear=false

}

if(oText.value.indexOf('.')!=-1)

{

if(this.innerHTML=='.')

{

return

}

}

if(oPer.value&&oText.value&&oText1.value=='')

{

oText1.value=oText.value

oText.value=''

}

var re=/^0\.{1}\d+$/

var re1=/^([0]\d+)$/

oText.value+=this.innerHTML

if(re.test(oText.value))

{

return

}

if(re1.test(oText.value))

{

oText.value=this.innerHTML

}

}

//符号部分的添加

for(var j=0j<aPer.lengthj++)

{

aPer[j].onclick=function()

{

if(oText.value&&oPer.value&&oText1.value)

{

var n=eval(oText1.value+oPer.value+oText.value)

oText.value=n

oText1.value=''

}

oPer.value=this.innerHTML

}

}

//点击等号的时候

oDeng.onclick=function()

{

//+-*/%的情况

if(oText1.value==''&&oPer.value==''&&oText.value=='')

{

return

}

var n=eval(oText1.value+oPer.value+oText.value)

oText.value=n

oText1.value=''

oPer.value=''

bClear=true

}

//点击开根号的时候

oSq.onclick=function()

{

var m=Math.sqrt(oText.value)

oText.value=m

}

//点击倒数的时候

oRec.onclick=function()

{

var a=1/oText.value

if(oText.value=='0')

{

a='正无穷'

}

oText.value=a

}

//正负号的时候

oZheng.onclick=function()

{

if(oText.value>0)

{

oText.value=-oText.value

}

else

{

oText.value =-oText.value

}

}

//清屏的时候

oClea.onclick=function()

{

oText.value='0'

oText1.value=''

oPer.value=''

}

}

}

//on时

oOn.onclick=function()

{

bOnOrOffClick=true

fnNum(bOnOrOffClick)

}

//off时

oOff.onclick=function()

{

bOnOrOffClick=false

fnNum(bOnOrOffClick)

oText.value=''

}

}

</script>

</head>

<body>

<div class="calBox">

<div class="calu">

<input type="text" id="text">

<ul class="one clearfix">

<li class="orange on">开机</li>

<li class="orange off">关机</li>

<li class="orange clea">清屏</li>

<li class="black zheng">+/-</li>

<li class="black rec">1/x</li>

<li class="num">7</li>

<li class="num">8</li>

<li class="num">9</li>

<li class="gray oper">/</li>

<li class="black oper">%</li>

<li class="num">4</li>

<li class="num">5</li>

<li class="num">6</li>

<li class="gray oper">*</li>

<li class="black sq">√</li>

<!-- -->

</ul>

<div class="clearfix">

<div class="twoBox fl">

<ul class="one fl two">

<li class="num">1</li>

<li class="num">2</li>

<li class="num">3</li>

<li class="gray oper">-</li>

<li class="zero num">0</li>

<li class="num">.</li>

<li class="gray oper">+</li>

</ul>

</div>

<ul class="one three clearfix fl">

<li class="black deng fl">=</li>

</ul>

</div>

</div>

</div>

<input type="text" id="per" style="display:none">

<input type="text" id="text1" style="display:none">

<div style="text-align:centerclear:both">

</div>

</body>

</html>