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100) { showError('数量需在 1~100 之间'); btnMain.disabled = false; btnMain.textContent = '生成'; return; } lastGenerated = []; for (var i = 0; i < count; i++) { lastGenerated.push(crypto.randomUUID()); } resultContent.textContent = lastGenerated.join('\n'); resultMeta.textContent = '已生成 ' + count + ' 个 UUID v4'; resultArea.classList.add('show'); btnMain.disabled = false; btnMain.textContent = '生成'; }); btnCopy.addEventListener('click', function() { if (!lastGenerated.length) return; navigator.clipboard.writeText(lastGenerated.join('\n')).then(function() { resultMeta.textContent = '已复制 ' + lastGenerated.length + ' 个 UUID 到剪贴板'; }).catch(function() { showError('复制失败，请手动选择复制'); }); }); btnClear.addEventListener('click', function() { document.getElementById('count').value = '5'; lastGenerated = []; resultArea.classList.remove('show'); errorMsg.classList.remove('show'); }); })();