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计算器.html
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<!DOCTYPE html>
<html lang="ch">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>计算器</title>
<style>
body,
div,
span {
margin: 0;
padding: 0;
}
body {
/* background: url(天蓝色.jpg);
background-size: 100% 100%; */
background: linear-gradient(45deg, #fbda61, #ff5acd);
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
.shell {
width: 440px;
height: 600px;
background-color: #dcdcdc;
position: relative;
box-shadow: 0px 15px 40px #ffdce3;
/* display: flex;
justify-content: center; */
}
.tit {
height: 40px;
line-height: 40px;
padding-left: 5px;
font-size: 18px;
border-bottom: 1px solid rgb(161, 161, 161);
}
.btn-jz {
float: right;
height: 30px;
line-height: 30px;
padding-right: 5px;
font-size: 18px;
background-color: #d4d4d4;
border: 1px solid rgba(165, 165, 165, 0.715);
margin: 5px;
}
.in {
width: 90%;
margin-left: 5%;
margin-top: 25px;
background-color: #333333;
height: 70px;
font-size: 28px;
font-weight: 700;
line-height: 70px;
margin-bottom: 20px;
color: #ffffff;
}
.on {
display: table;
border-top: 1px solid #adadad;
width: 100%;
}
th {
/* text-align: center; */
height: 45px;
line-height: 45px;
background-color: #bfbfbf;
cursor: pointer;
/* border: 1px solid rgb(128, 128, 128); */
}
/* th:hover {
background-color: #eaeaea;
} */
th:active {
background-color: #ededed;
}
.new {
width: 90%;
height: 400px;
margin: auto;
background-color: #fff;
display: none;
}
input {
width: 80%;
height: 30px;
margin: auto;
margin-top: 30px;
margin-left: 5px;
}
.btn-zh {
height: 35px;
width: 50px;
margin-left: 5px;
}
.sr {
width: 340px;
height: 24px;
margin: auto;
margin-top: 30px;
background-color: #d9ffd6;
padding: 5px;
}
.s {
width: 60px;
height: 24px;
font-size: 16px;
line-height: 24px;
background-color: #ffdcdc;
float: right;
margin-left: 10px;
text-align: center;
}
.angle {
width: 340px;
height: 24px;
margin: auto;
margin-top: 30px;
background-color: #fdd2ff;
padding: 5px;
}
.cc {
background-color: #fea5ff;
}
</style>
</head>
<body>
<div class="shell">
<div class="tit">计算器<button class="btn-jz">进制转换</button></div>
<div class="in">0</div>
<table class="on" cellpadding="15" cellspacing="0">
<tr>
<th id="bai">%</th>
<th id="gen">根号</th>
<th id="fan">x`2</th>
<th id="dao">1/x</th>
</tr>
<tr>
<th class="jx">CE</th>
<th class="jx">C</th>
<th id="back">Back</th>
<th class="jx">÷</th>
</tr>
<tr>
<th class="j">7</th>
<th class="j">8</th>
<th class="j">9</th>
<th class="jx">x</th>
</tr>
<tr>
<th class="j">4</th>
<th class="j">5</th>
<th class="j">6</th>
<th class="jx">-</th>
</tr>
<tr>
<th class="j" id="b1">1</th>
<th class="j" id="b2">2</th>
<th class="j" id="b3">3</th>
<th class="jx">+</th>
</tr>
<tr>
<th id="zf">+/-</th>
<th class="j">0</th>
<th class="j">.</th>
<th class="" id="deng">=</th>
</tr>
</table>
<div class="new">
<input type="text"><button class="btn-zh">转换</button>
<div class="sr">输入:
<div class="s">16进制</div>
<div class="s cc">10进制</div>
<div class="s">8进制</div>
<div class="s">2进制</div>
</div>
<div class="sr">输出:
<div class="s c">16进制</div>
<div class="s c">10进制</div>
<div class="s c">8进制</div>
<div class="s c">2进制</div>
</div>
<div class="angle">结果: <span class="e"></span></div>
</div>
<script>
const j = document.querySelectorAll('.j')
const jx = document.querySelectorAll('.jx')
const on = document.querySelector('.on')
const content = document.querySelector('.in')
const deng = document.querySelector('#deng')
const back = document.querySelector('#back')
const zf = document.querySelector('#zf')
const bai = document.querySelector('#bai')
const gen = document.querySelector('#gen')
const fan = document.querySelector('#fan')
const dao = document.querySelector('#dao')
let hao = localStorage.getItem('hao')
let n1 = localStorage.getItem('n1')
for (let i = 0; i < j.length; i++) {
j[i].addEventListener('click', function () {
if (content.innerHTML === '0' && i != 10) {
content.innerHTML = this.innerHTML
} else {
content.innerHTML = content.innerHTML + this.innerHTML
}
})
}
for (let i = 0; i < jx.length; i++) {
jx[i].addEventListener('click', function () {
localStorage.setItem('n1', content.innerHTML)
localStorage.setItem('hao', this.innerHTML)
hao = localStorage.getItem('hao')
content.innerHTML = '0'
n1 = localStorage.getItem('n1')
// console.log(n1);
})
}
deng.addEventListener('click', function () {
let n2 = content.innerHTML
if (hao == '+') {
let d = Number(n1) + Number(n2)
content.innerHTML = d
// console.log(n1);
// console.log(n2);
// console.log(d);
localStorage.clear()
} else if (hao == '-') {
let d = Number(n1) - Number(n2)
content.innerHTML = d
localStorage.clear()
}
else if (hao == 'x') {
let d = Number(n1) * Number(n2)
content.innerHTML = d
localStorage.clear()
}
else if (hao == '÷') {
let d = Number(n1) / Number(n2)
content.innerHTML = d
localStorage.clear()
}
// else if (hao == 'Back') {
// d= content.innerHTML.slice(0,-1)
// content.innerHTML = d
// localStorage.clear()
// }
})
back.addEventListener('click', function () {
content.innerHTML = content.innerHTML.slice(0, -1)
if (content.innerHTML == '') {
content.innerHTML = 0
}
})
zf.addEventListener('click', function () {
if (content.innerHTML.charAt(0) == '-') {
content.innerHTML = content.innerHTML.slice(1)
} else {
content.innerHTML = '-' + content.innerHTML
}
})
bai.addEventListener('click', function () {
content.innerHTML = Number(content.innerHTML) * 0.01
})
gen.addEventListener('click', function () {
content.innerHTML = Math.sqrt(Number(content.innerHTML))
})
fan.addEventListener('click', function () {
content.innerHTML = Number(content.innerHTML) * Number(content.innerHTML)
})
dao.addEventListener('click', function () {
content.innerHTML = 1 / Number(content.innerHTML)
})
// jz
const jz = document.querySelector('.btn-jz')
const newjz = document.querySelector('.new')
let jzclick = 0
jz.addEventListener('click', function () {
jzclick++
if (jzclick % 2 == 1) {
on.style.display = 'none'
newjz.style.display = 'block'
} else {
on.style.display = 'table'
newjz.style.display = 'none'
}
})
// 获取
const input = document.querySelector('input')
const zh = document.querySelector('.btn-zh')
const c = document.querySelectorAll('.c')
const e = document.querySelector('.e')
let start = 0
let end = null
let cc = -1
for (let i = 0; i < c.length; i++) {
c[i].addEventListener('click', function () {
cc = i
console.log(i);
fc()
c[i].classList.add("cc");
})
}
function fc() {
for (let v = 0; v < c.length; v++) {
c[v].classList.remove('cc');
}
}
zh.addEventListener('click', function () {
if (cc >= 0) {
start = input.value
if (start == '') {
alert('请输入')
} else {
start = Number(start)
console.log(start);
switch (cc) {
case 0:
end = start.toString(16);
console.log(end);
e.innerHTML = end
break;
case 1:
end = start.toString(10);
console.log(end);
e.innerHTML = end
break;
case 2:
end = start.toString(8);
console.log(end);
e.innerHTML = end
break;
case 3:
end = start.toString(2);
console.log(end);
e.innerHTML = end
break;
default:
break;
}
}
}
})
</script>
</body>
</html>