.

server.js

@@ -0,0 +1,46 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const port = 3000;
+const rootDir = __dirname;
+
+const mimeTypes = {
+    '.html': 'text/html',
+    '.css': 'text/css',
+    '.js': 'application/javascript',
+    '.json': 'application/json',
+    '.png': 'image/png',
+    '.jpg': 'image/jpg',
+    '.gif': 'image/gif',
+    '.svg': 'image/svg+xml',
+    '.ico': 'image/x-icon'
+};
+
+const server = http.createServer((req, res) => {
+    let filePath = path.join(rootDir, req.url === '/' ? 'index.html' : req.url);
+    
+    const extname = String(path.extname(filePath)).toLowerCase();
+    const contentType = mimeTypes[extname] || 'application/octet-stream';
+
+    fs.readFile(filePath, (error, content) => {
+        if (error) {
+            if (error.code === 'ENOENT') {
+                res.writeHead(404, { 'Content-Type': 'text/html' });
+                res.end('<h1>404 Not Found</h1>', 'utf-8');
+            } else {
+                res.writeHead(500);
+                res.end(`Server Error: ${error.code}`, 'utf-8');
+            }
+        } else {
+            res.writeHead(200, { 'Content-Type': contentType });
+            res.end(content, 'utf-8');
+        }
+    });
+});
+
+server.listen(port, () => {
+    console.log(`服务器已启动！`);
+    console.log(`访问地址: http://localhost:${port}`);
+    console.log(`按 Ctrl+C 停止服务器`);
+});