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lab.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>中文编程实验室</title>
<!-- Include CodeMirror for the code editor -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.2/codemirror.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.2/theme/monokai.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.2/codemirror.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.2/mode/javascript/javascript.min.js"></script>
<style>
/* Add new nav styles */
.nav {
background-color: #333;
padding: 1rem;
display: flex;
align-items: center;
gap: 2rem;
}
.nav h1 {
color: white;
margin: 0;
font-size: 1.5rem;
}
.nav a {
color: white;
text-decoration: none;
font-size: 1.1rem;
}
.nav a:hover {
color: #4CAF50;
}
.nav img {
height: 24px;
width: 24px;
}
/* Update body to account for nav */
body {
margin: 0;
padding: 0;
height: 100vh;
display: flex;
flex-direction: column;
}
.container {
display: flex;
flex: 1;
}
.left, .right {
flex: 1;
padding: 10px;
display: flex;
flex-direction: column;
}
.right {
display: flex;
flex-direction: column;
}
#output {
width: 100%;
height: 100%;
resize: none;
margin-top: 10px;
font-family: monospace;
padding: 10px;
box-sizing: border-box;
}
#runButton {
padding: 10px 20px;
font-size: 16px;
background-color: #4CAF50;
color: white;
border: none;
cursor: pointer;
margin-bottom: 10px;
}
#runButton:hover {
background-color: #45a049;
}
.CodeMirror {
height: 100% !important;
}
.box-label {
font-size: 1.1rem;
margin-bottom: 10px;
color: #333;
font-weight: normal;
}
.nav h1 a {
color: white;
text-decoration: none;
}
.nav h1 a:hover {
color: #4CAF50;
}
</style>
</head>
<body>
<!-- Add navigation bar -->
<nav class="nav">
<a href="index.html"><img src="zhprog-logo.webp" alt="咱的LOGO"></a>
<h1><a href="index.html">中文编程实验室</a></h1>
<a href="intro.html">介绍</a>
<a href="https://blog.csdn.net/weixin_51709700/category_12837205.html?spm=1001.2014.3001.5482">CSDN博客</a>
<a href="about.html">关于我们</a>
</nav>
<div class="container">
<div class="left">
<div class="box-label">道友在此输入代码</div>
<textarea id="editor"></textarea>
</div>
<div class="right">
<div class="box-label">道友请看运行结果</div>
<button id="runButton">执行</button>
<textarea id="output" readonly placeholder="结果将在此显示"></textarea>
</div>
</div>
<script>
// Initialize CodeMirror
const editor = CodeMirror.fromTextArea(document.getElementById("editor"), {
mode: "javascript",
theme: "monokai",
lineNumbers: true,
autoCloseBrackets: true,
matchBrackets: true,
indentUnit: 4,
tabSize: 4,
lineWrapping: true
});
// Handle Run button click
document.getElementById("runButton").addEventListener("click", function() {
const code = editor.getValue();
const output = document.getElementById("output");
output.value = "";
try {
// Initialize variable storage
let variables = new Map();
// Process each line
const lines = code.split('\n');
for (let lineNumber = 0; lineNumber < lines.length; lineNumber++) {
let line = lines[lineNumber].trim();
// Remove comments and trailing content after ';;'
const commentIndex = line.indexOf(';;');
if (commentIndex !== -1) {
line = line.substring(0, commentIndex).trim();
}
if (!line) continue;
const parts = line.split(/\s+/);
const command = parts[0];
try {
switch (command) {
case "变量":
for (let i = 1; i < parts.length; i++) {
variables.set(parts[i], 0);
}
break;
case "设":
if (parts.length !== 3) {
throw new Error("设置变量格式错误！正确格式：设 变量名 数值");
}
if (!variables.has(parts[1])) {
throw new Error(`未声明的变量：${parts[1]}`);
}
const value = parseFloat(parts[2]);
if (isNaN(value)) {
throw new Error("无效的数值！");
}
variables.set(parts[1], value);
break;
case "加":
if (parts.length !== 4) {
throw new Error("加法格式错误！正确格式：加 变量1 变量2 结果变量");
}
checkVariables(parts.slice(1), variables);
const sum = variables.get(parts[1]) + variables.get(parts[2]);
variables.set(parts[3], sum);
break;
case "减":
if (parts.length !== 4) {
throw new Error("减法格式错误！正确格式：减 变量1 变量2 结果变量");
}
checkVariables(parts.slice(1), variables);
const diff = variables.get(parts[1]) - variables.get(parts[2]);
variables.set(parts[3], diff);
break;
case "乘":
if (parts.length !== 4) {
throw new Error("乘法格式错误！正确格式：乘 变量1 变量2 结果变量");
}
checkVariables(parts.slice(1), variables);
const product = variables.get(parts[1]) * variables.get(parts[2]);
variables.set(parts[3], product);
break;
case "除":
if (parts.length !== 4) {
throw new Error("除法格式错误！正确格式：除 变量1 变量2 结果变量");
}
checkVariables(parts.slice(1), variables);
if (variables.get(parts[2]) === 0) {
throw new Error("除数不能为零！");
}
const quotient = variables.get(parts[1]) / variables.get(parts[2]);
variables.set(parts[3], quotient);
break;
case "出":
if (parts.length < 2) {
throw new Error("输出格式错误！正确格式：出 表达式");
}
let outputString = "";
for (let i = 1; i < parts.length; i++) {
if (variables.has(parts[i])) {
outputString += variables.get(parts[i]);
} else {
outputString += parts[i];
}
}
output.value += outputString + '\n';
break;
default:
throw new Error(`未知命令：${command}`);
}
} catch (error) {
throw new Error(`错误在第 ${lineNumber + 1} 行: ${error.message} (解析部分: [${parts.join(', ')}], 部分数量: ${parts.length})`);
}
}
} catch (error) {
output.value = "错误: " + error.message;
}
});
// Helper function to check if variables exist
function checkVariables(vars, variables) {
for (let v of vars) {
if (!variables.has(v)) {
throw new Error(`未声明的变量：${v}`);
}
}
}
</script>
</body>
</html>