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2
README.md
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# problem1

62
calculator.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>简单计算器</title>
<style>
/* 简单的样式，可以根据需要自定义 */
body { font-family: Arial, sans-serif; }
.calculator { max-width: 300px; margin: 0 auto; padding: 20px; border: 1px solid #ccc; border-radius: 5px; }
input, button { width: 100%; padding: 10px; margin: 5px 0; }
</style>
</head>
<body>
<div class="calculator">
<input type="text" id="result" readonly>
<br>
<input type="number" id="num1" placeholder="输入第一个数字">
<select id="operator">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<input type="number" id="num2" placeholder="输入第二个数字">
<br>
<button onclick="calculate()">计算</button>
</div>
<script>
function calculate() {
const num1 = parseFloat(document.getElementById('num1').value);
const num2 = parseFloat(document.getElementById('num2').value);
const operator = document.getElementById('operator').value;
let result;
switch (operator) {
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - num2;
break;
case '*':
result = num1 * num2;
break;
case '/':
if (num2 === 0) {
result = '错误：除数不能为零';
} else {
result = num1 / num2;
}
break;
default:
result = '错误：无效运算符';
}
document.getElementById('result').value = result;
}
</script>
</body>
</html>

39
t1/css/styles.css
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body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
background-color: #f0f0f0;
}
.calculator {
background-color: white;
padding: 20px;
border-radius: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.display {
background-color: #222;
color: white;
text-align: right;
padding: 20px;
font-size: 2em;
border-radius: 5px;
margin-bottom: 10px;
}
.buttons {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 10px;
}
button {
padding: 20px;
font-size: 1.5em;
border: none;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s;
}
button:hover {
background-color: #eee;
}

38
t1/index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>手机计算器</title>
<link rel="stylesheet" href="css/styles.css">
<script type="text/javascript">
</script>
</head>
<body>
<div class="calculator">
<div class="display" id="display">0</div>
<div class="buttons">
<button onclick="clearDisplay('C')">C</button>
<button onclick="chooseOperation('%')">%</button>
<button>←</button>
<button onclick="chooseOperation('/')">/</button>
<button onclick="appendNumber('7')">7</button>
<button onclick="appendNumber('8')">8</button>
<button onclick="appendNumber('9')">9</button>
<button onclick="chooseOperation('*')">×</button>
<button onclick="appendNumber('4')">4</button>
<button onclick="appendNumber('5')">5</button>
<button onclick="appendNumber('6')">6</button>
<button onclick="chooseOperation('-')">-</button>
<button onclick="appendNumber('1')">1</button>
<button onclick="appendNumber('2')">2</button>
<button onclick="appendNumber('3')">3</button>
<button onclick="chooseOperation('+')">+</button>
<button onclick="appendNumber('0')">0</button>
<button onclick="appendDecimal('.')">.</button>
<button onclick="calculateResult('=')">=</button>
</div>
</div>
<script src="js/script.js"></script>
</body>
</html>

71
t1/js/script.js
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let display = document.getElementById('display');
let currentInput = '';
let previousInput = '';
let operation = null;
function appendNumber(number) {
currentInput += number;
display.textContent = currentInput;
}
function appendDecimal(dot) {
if (!currentInput.includes(dot)) {
currentInput += dot;
display.textContent = currentInput;
}
}
function chooseOperation(op) {
if (currentInput === '') return;
if (previousInput !== '') {
calculateResult();
}
operation = op;
previousInput = parseFloat(currentInput);
currentInput = '';
}
function clearDisplay(clear) {
if (clear === 'C') {
display.textContent = '0';
currentInput = '';
previousInput = '';
operation = null;
} else if (clear === 'AC') {
// Full reset (not implemented in basic example)
}
}
function calculateResult(equals) {
let result;
const prev = previousInput;
const curr = parseFloat(currentInput);
if (isNaN(prev) || isNaN(curr)) return;
switch (operation) {
case '+':
result = prev + curr;
break;
case '-':
result = prev - curr;
break;
case '*':
result = prev * curr;
break;
case '/':
result = prev / curr;
break;
case '%':
result = prev % curr;
break;
default:
return;
}
display.textContent = result;
previousInput = result;
currentInput = '';
operation = null;
}
// Bind equals button to calculate result
document.querySelector('button[onclick="calculateResult(\'=\')"]').addEventListener('click', calculateResult);

203
t1/manifest.json
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{
"@platforms": ["android", "iPhone", "iPad"],
"id" : "",/*应用的标识*/
"name" : "t1",/*应用名称，程序桌面图标名称*/
"version": {
"name": "1.0",/*应用版本名称*/
"code": "100"
},
"description": "",/*应用描述信息*/
"icons": {
"72": "icon.png"
},
"launch_path": "index.html",/*应用的入口页面，默认为根目录下的index.html；支持网络地址，必须以http://或https://开头*/
"developer": {
"name": "",/*开发者名称*/
"email": "",/*开发者邮箱地址*/
"url": ""/*开发者个人主页地址*/
},
"permissions": {
"Accelerometer": {
"description": "访问加速度感应器"
},
"Audio": {
"description": "访问麦克风"
},
"Messaging":{
"description": "短彩邮件插件"
},
"Cache": {
"description": "管理应用缓存"
},
"Camera": {
"description": "访问摄像头"
},
"Console": {
"description": "跟踪调试输出日志"
},
"Contacts": {
"description": "访问系统联系人信息"
},
"Device": {
"description": "访问设备信息"
},
"Downloader": {
"description": "文件下载管理"
},
"Events": {
"description": "应用扩展事件"
},
"File": {
"description": "访问本地文件系统"
},
"Gallery": {
"description": "访问系统相册"
},
"Geolocation": {
"description": "访问位置信息"
},
"Invocation": {
"description": "使用Native.js能力"
},
"Orientation": {
"description": "访问方向感应器"
},
"Proximity": {
"description": "访问距离感应器"
},
"Storage": {
"description": "管理应用本地数据"
},
"Uploader": {
"description": "管理文件上传任务"
},
"Runtime": {
"description": "访问运行期环境"
},
"XMLHttpRequest": {
"description": "跨域网络访问"
},
"Zip": {
"description": "文件压缩与解压缩"
},
"Barcode": {
"description": "管理二维码扫描插件"
},
"Maps": {
"description": "管理地图插件"
},
"Speech": {
"description": "管理语音识别插件"
},
"Webview":{
"description": "窗口管理"
},
"NativeUI":{
"description": "原生UI控件"
},
"Navigator":{
"description": "浏览器信息"
},
"NativeObj":{
"description": "原生对象"
}
},
"plus": {
"splashscreen": {
"autoclose": true,/*是否自动关闭程序启动界面，true表示应用加载应用入口页面后自动关闭；false则需调plus.navigator.closeSplashscreen()关闭*/
"waiting": true/*是否在程序启动界面显示等待雪花，true表示显示，false表示不显示。*/
},
"popGesture": "close",/*设置应用默认侧滑返回关闭Webview窗口，"none"为无侧滑返回功能，"hide"为侧滑隐藏Webview窗口。参考http://ask.dcloud.net.cn/article/102*/
"runmode": "normal",/*应用的首次启动运行模式，可取liberate或normal，liberate模式在第一次启动时将解压应用资源（Android平台File API才可正常访问_www目录）*/
"signature": "Sk9JTiBVUyBtYWlsdG86aHIyMDEzQGRjbG91ZC5pbw==",/*可选，保留给应用签名，暂不使用*/
"distribute": {
"apple": {
"appid": "",/*iOS应用标识，苹果开发网站申请的appid，如io.dcloud.HelloH5*/
"mobileprovision": "",/*iOS应用打包配置文件*/
"password": "",/*iOS应用打包个人证书导入密码*/
"p12": "",/*iOS应用打包个人证书，打包配置文件关联的个人证书*/
"devices": "universal",/*iOS应用支持的设备类型，可取值iphone/ipad/universal*/
"frameworks":[
]/*调用Native.js调用原生Objective-c API需要引用的FrameWork，如需调用GameCenter，则添加"GameKit.framework"*/
},
"google": {
"packagename": "",/*Android应用包名，如io.dcloud.HelloH5*/
"keystore": "",/*Android应用打包使用的密钥库文件*/
"password": "",/*Android应用打包使用密钥库中证书的密码*/
"aliasname": "",/*Android应用打包使用密钥库中证书的别名*/
"permissions": ["<uses-permission android:name=\"android.permission.CHANGE_NETWORK_STATE\"/>","<uses-permission android:name=\"android.permission.MOUNT_UNMOUNT_FILESYSTEMS\"/>","<uses-permission android:name=\"android.permission.READ_CONTACTS\"/>","<uses-permission android:name=\"android.permission.VIBRATE\"/>","<uses-permission android:name=\"android.permission.READ_LOGS\"/>","<uses-permission android:name=\"android.permission.ACCESS_WIFI_STATE\"/>","<uses-feature android:name=\"android.hardware.camera.autofocus\"/>","<uses-permission android:name=\"android.permission.WRITE_CONTACTS\"/>","<uses-permission android:name=\"android.permission.ACCESS_NETWORK_STATE\"/>","<uses-permission android:name=\"android.permission.CAMERA\"/>","<uses-permission android:name=\"android.permission.RECORD_AUDIO\"/>","<uses-permission android:name=\"android.permission.GET_ACCOUNTS\"/>","<uses-permission android:name=\"android.permission.MODIFY_AUDIO_SETTINGS\"/>","<uses-permission android:name=\"android.permission.READ_PHONE_STATE\"/>","<uses-permission android:name=\"android.permission.CHANGE_WIFI_STATE\"/>","<uses-permission android:name=\"android.permission.WAKE_LOCK\"/>","<uses-permission android:name=\"android.permission.CALL_PHONE\"/>","<uses-permission android:name=\"android.permission.FLASHLIGHT\"/>","<uses-permission android:name=\"android.permission.ACCESS_COARSE_LOCATION\"/>","<uses-feature android:name=\"android.hardware.camera\"/>","<uses-permission android:name=\"android.permission.ACCESS_FINE_LOCATION\"/>","<uses-permission android:name=\"android.permission.WRITE_SETTINGS\"/>"]
/*使用Native.js调用原生安卓API需要使用到的系统权限*/
},
"orientation": [
"portrait-primary"
],/*应用支持的方向，portrait-primary：竖屏正方向；portrait-secondary：竖屏反方向；landscape-primary：横屏正方向；landscape-secondary：横屏反方向*/
"icons": {
"ios": {
"prerendered": true, /*应用图标是否已经高亮处理，在iOS6及以下设备上有效*/
"auto": "", /*应用图标，分辨率：512x512，用于自动生成各种尺寸程序图标*/
"iphone": {
"normal": "", /*iPhone3/3GS程序图标，分辨率：57x57*/
"retina": "", /*iPhone4程序图标，分辨率：114x114*/
"retina7": "", /*iPhone4S/5/6程序图标，分辨率：120x120*/
"retina8": "", /*iPhone6 Plus程序图标，分辨率：180x180*/
"spotlight-normal": "", /*iPhone3/3GS Spotlight搜索程序图标，分辨率：29x29*/
"spotlight-retina": "", /*iPhone4 Spotlight搜索程序图标，分辨率：58x58*/
"spotlight-retina7": "", /*iPhone4S/5/6 Spotlight搜索程序图标，分辨率：80x80*/
"settings-normal": "", /*iPhone4设置页面程序图标，分辨率：29x29*/
"settings-retina": "", /*iPhone4S/5/6设置页面程序图标，分辨率：58x58*/
"settings-retina8": "" /*iPhone6Plus设置页面程序图标，分辨率：87x87*/
},
"ipad": {
"normal": "", /*iPad普通屏幕程序图标，分辨率：72x72*/
"retina": "", /*iPad高分屏程序图标，分辨率：144x144*/
"normal7": "", /*iPad iOS7程序图标，分辨率：76x76*/
"retina7": "", /*iPad iOS7高分屏程序图标，分辨率：152x152*/
"spotlight-normal": "", /*iPad Spotlight搜索程序图标，分辨率：50x50*/
"spotlight-retina": "", /*iPad高分屏Spotlight搜索程序图标，分辨率：100x100*/
"spotlight-normal7": "",/*iPad iOS7 Spotlight搜索程序图标，分辨率：40x40*/
"spotlight-retina7": "",/*iPad iOS7高分屏Spotlight搜索程序图标，分辨率：80x80*/
"settings-normal": "",/*iPad设置页面程序图标，分辨率：29x29*/
"settings-retina": "" /*iPad高分屏设置页面程序图标，分辨率：58x58*/
}
},
"android": {
"mdpi": "", /*普通屏程序图标，分辨率：48x48*/
"ldpi": "", /*大屏程序图标，分辨率：48x48*/
"hdpi": "", /*高分屏程序图标，分辨率：72x72*/
"xhdpi": "",/*720P高分屏程序图标，分辨率：96x96*/
"xxhdpi": ""/*1080P 高分屏程序图标，分辨率：144x144*/
}
},
"splashscreen": {
"ios": {
"iphone": {
"default": "", /*iPhone3启动图片选，分辨率：320x480*/
"retina35": "",/*3.5英寸设备(iPhone4)启动图片，分辨率：640x960*/
"retina40": "",/*4.0 英寸设备(iPhone5/iPhone5s)启动图片，分辨率：640x1136*/
"retina47": "",/*4.7 英寸设备(iPhone6)启动图片，分辨率：750x1334*/
"retina55": "",/*5.5 英寸设备(iPhone6 Plus)启动图片，分辨率：1242x2208*/
"retina55l": ""/*5.5 英寸设备(iPhone6 Plus)横屏启动图片，分辨率：2208x1242*/
},
"ipad": {
"portrait": "", /*iPad竖屏启动图片，分辨率：768x1004*/
"portrait-retina": "",/*iPad高分屏竖屏图片，分辨率：1536x2008*/
"landscape": "", /*iPad横屏启动图片，分辨率：1024x748*/
"landscape-retina": "", /*iPad高分屏横屏启动图片，分辨率：2048x1496*/
"portrait7": "", /*iPad iOS7竖屏启动图片，分辨率：768x1024*/
"portrait-retina7": "",/*iPad iOS7高分屏竖屏图片，分辨率：1536x2048*/
"landscape7": "", /*iPad iOS7横屏启动图片，分辨率：1024x768*/
"landscape-retina7": ""/*iPad iOS7高分屏横屏启动图片，分辨率：2048x1536*/
}
},
"android": {
"mdpi": "", /*普通屏启动图片，分辨率：240x282*/
"ldpi": "", /*大屏启动图片，分辨率：320x442*/
"hdpi": "", /*高分屏启动图片，分辨率：480x762*/
"xhdpi": "", /*720P高分屏启动图片，分辨率：720x1242*/
"xxhdpi": ""/*1080P高分屏启动图片，分辨率：1080x1882*/
}
}
}
}
}
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