计算器HTML和css代码 计算器 html

用editplus编写计算器的代码

题主是否想询问用editplus编写计算器的代码的方法用editplus编写计算器的代码的方法如下。

1、打开EditPlus新建一个文件，设置文件类型为HTML或者PHP。

2、在文件中编写HTML代码，包括计算器的界面和按钮等，可以使用HTML标签和CSS样式来设计布局和样式。

3、在HTML中添加JavaScript代码，实现计算器的逻辑功能，包括数字、运算符的输入和计算结果的显示，可以使用JavaScript提供的函数和方法来实现这些功能。

4、保存文件，可以使用浏览器打开该文件，测试计算器的功能。

相关问答

Q1: 简易计算器全代码

效果图：

!DOCTYPE html

html

head

meta charset="utf-8"

titlemini计算器/title

style type="text/css"

body {

margin: 100px;

}

#app {

border: 1px solid #ccc;

width: 175px;

height: 285px;

padding: 10px;

border-radius: 4px;

}

#app .btn {

width: 40px;

height: 40px;

border: 1px solid #ccc;

border-radius: 2px;

background-color: white;

margin-bottom: 10px;

cursor: pointer;

color: #666;

font-weight: bold;

}

#app .btn:hover {

background-color: #333;

color: white;

}

#input-box {

width: 161px;

text-align: right;

height: 30px;

border: 1px solid #ccc;

border-radius: 2px;

margin-bottom: 10px;

background-color: white;

padding: 0 5px;

}

#app .btn-double {

width: 84px;

}

/style

/head

body

div id="app"

result-box :get-value="resultvalue"/result-box

calc-box

button class="btn" @click="clear"C/button

button class="btn" @click="sign"+/-/button

button class="btn" @click="sambol('*')"*/button

button class="btn" @click="sambol('/')"//button

button class="btn" @click="input('1')"1/button

button class="btn" @click="input('2')"2/button

button class="btn" @click="input('3')"3/button

button class="btn" @click="sambol('-')"-/button

button class="btn" @click="input('4')"4/button

button class="btn" @click="input('5')"5/button

button class="btn" @click="input('6')"6/button

button class="btn" @click="sambol('+')"+/button

button class="btn" @click="input('7')"7/button

button class="btn" @click="input('8')"8/button

button class="btn" @click="input('9')"9/button

button class="btn" @click="sambol('%')"%/button

button class="btn" @click="input('0')"0/button

button class="btn" @click="point"./button

button class="btn btn-double" @click="calculate"=/button

/calc-box

/div

script src=""/script

script

// 去掉提示

// Vue.config.productionTip=false

const resultBox = {

// 父子通信

props: ["getValue"],

// 计算属性

computed: {

value() {

return this.getValue

}

},

template: `input id="input-box" type="text" v-model="value" readonly /`

}

const calcBox = {

template: `div id="calc-box"

slot/slot

/div

`

}

const app = new Vue({

el: "#app",

data: {

resultvalue: 0

},

// 组件

components: {

// 计算器结果框

'result-box': resultBox,

// 计算器输入面板组件

'calc-box': calcBox

},

methods: {

// 输入数值  累加

input(param) {

// 拒绝开始0和反复0  防止0.被和谐

if (parseInt(this.resultvalue) === 0 !/0[\.|\s]/.test(this.resultvalue)) {

this.resultvalue = param

} else {

this.resultvalue += param

}

},

// 加减乘除

sambol(param) {

// 有空格显得更加好看

this.resultvalue += '  ' + param + '  '

},

// 处理小数点

point() {

const strValue = this.toStr()

// 得到最后一位数值

const lastNumber = strValue.substring(strValue.lastIndexOf(' '))

// 判断是否已经存在小数点

// 存在

if (lastNumber.indexOf('.') !== -1) {

return

} else {

this.resultvalue += '.'

}

},

// 转换成字符串

toStr() {

return this.resultvalue.toString()

},

clear(){

this.resultvalue=0

},

// 正负号设置

sign(){

const strValue=this.toStr()

let lastNumber = strValue.substring(strValue.lastIndexOf(' '))

// 得到之前的数值+符号

let prevNumber=strValue.substr(0,strValue.lastIndexOf(' '))

// 判断当前是否有正负号

if(lastNumber.indexOf('-')===-1){

lastNumber=' -'+lastNumber.trim()

}

else{

lastNumber=' '+lastNumber.trim().substr(1)

}

this.resultvalue=prevNumber+lastNumber;

},

calculate(){

try{

this.resultvalue=eval(this.resultvalue)

}catch(e){

//TODO handle the exception

alert('no')

}

}

}

})

/script

/body

/html

Q2: 用HTML代码写一个计算器

html

head

title计算器/title

/head

body bgcolor="#ffffff" onload="FKeyPad.ReadOut.focus();FKeyPad.ReadOut.select();"

FORM name="Keypad" action=""

TABLE align="center"

B

TABLE align="center" border=2 width=50 height=60 cellpadding=1 cellspacing=5

TR

TD colspan=3 align=middleinput name="ReadOut" type="Text" onkeypress="CheckOut()" size=24 value="0"

width=100%/TD

TD/TD

TDinput name="btnClear" type="Button" value=" C " onclick="Clear()"/TD

TDinput name="btnClearEntry" type="Button" value=" CE " onclick="ClearEntry()"/TD

/TR

TR

TDinput name="btnSeven" type="Button" value=" 7 " onclick="NumPressed(7)"/TD

TDinput name="btnEight" type="Button" value=" 8 " onclick="NumPressed(8)"/TD

TDinput name="btnNine" type="Button" value=" 9 " onclick="NumPressed(9)"/TD

TD/TD

TDinput name="btnNeg" type="Button" value=" +/- " onclick="Neg()"/TD

TDinput name="btnPercent" type="Button" value=" % " onclick="Percent()"/TD

/TR

TR

TDinput name="btnFour" type="Button" value=" 4 " onclick="NumPressed(4)"/TD

TDinput name="btnFive" type="Button" value=" 5 " onclick="NumPressed(5)"/TD

TDinput name="btnSix" type="Button" value=" 6 " onclick="NumPressed(6)"/TD

TD/TD

TD align=middleinput name="btnPlus" type="Button" value=" + " onclick="Operation('+')" /TD

TD align=middleinput name="btnMinus" type="Button" value=" - " onclick="Operation('-')"/TD

/TR

TR

TDinput name="btnOne" type="Button" value=" 1 " onclick="NumPressed(1)"/TD

TDinput name="btnTwo" type="Button" value=" 2 " onclick="NumPressed(2)"/TD

TDinput name="btnThree" type="Button" value=" 3 " onclick="NumPressed(3)"/TD

TD/TD

TD align=middleinput name="btnMultiply" type="Button" value=" * " onclick="Operation('*')"/TD

TD align=middleinput name="btnDivide" type="Button" value=" / " onclick="Operation('/')"/TD

/TR

TR

TDinput name="btnZero" type="Button" value=" 0 " onclick="NumPressed(0)"/TD

TDinput name="btnDecimal" type="Button" value=" . " onclick="Decimal()"/TD

TD colspan=2/TD

TDinput name="btnEquals" type="Button" value=" = " onclick="Operation('=')"/TD

TDinput name="btnReturn" type="Button" value="返 回" onclick="goReturn()"/TD

/TR

/TABLE

/TABLE

/B

/FORM

/CENTER

font face="Verdana, Arial, Helvetica" size=2

SCRIPT LANGUAGE="JavaScript"

!-- Begin

var FKeyPad = document.forms['Keypad'];

var Accum = "0";

var FlagNewNum = false;

var PendingOp = "";

//===============================================================================

//[描述] 浮点数精确计算

//[参数] str1 - 第一个数

// str2 - 第二个数

// type - 运算符

// precision - 小数位精度

//[调用方式] longCount(str1,str2,type,precision);

//[返回值] 计算结果

//===============================================================================

function longCount(str1,str2,type) {

var comma1 = 0;

if (str1.indexOf(".")!=-1) {

str1 = str1.replace(/0*$/,"");

comma1 = str1.length - str1.indexOf(".")-1;

}

var comma2 = 0;

if (str2.indexOf(".")!=-1) {

str2 = str2.replace(/0*$/,"");

comma2 = str2.length - str2.indexOf(".")-1;

}

str1 = str1.replace(/\./,"");

str2 = str2.replace(/\./,"");

var value,comma;

if (type!="*") {

if (comma1comma2) {

for (var i=0;icomma1-comma2;i++) str2 += "0";

comma = (type=="/")?0:comma1;

}else {

for (var i=0;icomma2-comma1;i++) str1 += "0";

comma = (type=="/")?0:comma2;

}

}else {

comma = comma1 + comma2;

}

if (type=="+") {

value = parseInt(str1,10) + parseInt(str2,10);

}else if (type=="-") {

value = parseInt(str1,10) - parseInt(str2,10);

}else if (type=="*") {

value = parseInt(str1,10) * parseInt(str2,10);

}else if (type=="/") {

value = parseInt(str1,10) / parseInt(str2,10);

}

value = String(value);

if (comma0) value = value.substring(0,value.length-comma)+"."+value.substring(value.length-

comma,value.length);

if (value.indexOf(".")!=-1)

value = value.replace(/0*$/,"");

return value;

}

function NumPressed (Num) {

if (FlagNewNum) {

FKeyPad.ReadOut.value = Num;

FlagNewNum = false;

}

else {

if (FKeyPad.ReadOut.value == "0")

FKeyPad.ReadOut.value = Num;

else

FKeyPad.ReadOut.value += Num;

}

}

function Operation (Op) {

var Readout = FKeyPad.ReadOut.value;

if (FlagNewNum PendingOp != "=");

else

{

FlagNewNum = true;

if ( '+' == PendingOp || '-' == PendingOp || '/' == PendingOp || '*' == PendingOp)

Accum = longCount(Accum,Readout,PendingOp);

else

Accum = Readout;

FKeyPad.ReadOut.value = Accum;

PendingOp = Op;

FKeyPad.ReadOut.focus();

FKeyPad.ReadOut.select();

}

}

function Decimal () {

var curReadOut = FKeyPad.ReadOut.value;

if (FlagNewNum) {

curReadOut = "0.";

FlagNewNum = false;

}

else

{

if (curReadOut.indexOf(".") == -1)

curReadOut += ".";

}

FKeyPad.ReadOut.value = curReadOut;

}

function ClearEntry () {

FKeyPad.ReadOut.value = "0";

FlagNewNum = true;

}

function Clear () {

Accum = "0";

PendingOp = "";

ClearEntry();

}

function Neg () {

alert(FKeyPad.ReadOut.value);

FKeyPad.ReadOut.value = longCount(FKeyPad.ReadOut.value,"-1","*");

}

function Percent () {

FKeyPad.ReadOut.value = longCount(FKeyPad.ReadOut.value,Accum,"*");

FKeyPad.ReadOut.value = longCount(FKeyPad.ReadOut.value,100,"/");

}

function goReturn() {

top.returnValue = FKeyPad.ReadOut.value;

self.close();

}

function CheckOut() {

var keyCode = window.event.keyCode;

if (keyCode=48 keyCode=57) {

if (FlagNewNum) {

FKeyPad.ReadOut.value = "";

//window.event.keyCode = null;

FlagNewNum = false;

}

return true;

}else if (keyCode==43 || keyCode==45 || keyCode==42 || keyCode==47 || keyCode==61) {

Operation(String.fromCharCode(keyCode));

}else if (keyCode==46) {//.

if (FKeyPad.ReadOut.value.indexOf(".") == -1)

return true;

}else if (keyCode==13) goReturn();

window.event.returnValue = false;

return false;

}

// End --

/SCRIPT

/body

/html

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