'; resultContent.innerHTML = html; resultMeta.textContent = 'MD5: ' + out; resultArea.classList.add('show'); }).catch(function(err) { btnMain.disabled = false; btnMain.textContent = orig; showError('计算失败: ' + err.message + ' (某些浏览器不支持 MD5)'); }); }); document.getElementById('btn-clear').addEventListener('click', function() { form.reset(); clearError(); clearResult(); }); })();