';
html += '| 买入总价 | ¥ ' + total.toFixed(2) + ' |
';
html += '| 卖出总价 | ¥ ' + sale.toFixed(2) + ' |
';
html += '| 差价/克 | ¥ ' + (s-b).toFixed(2) + ' |
';
html += '
';
resultContent.innerHTML = html;
resultMeta.textContent = (gain>=0?'+':'') + pct.toFixed(2) + '%';
resultArea.classList.add('show');
});
document.getElementById('btn-clear').addEventListener('click', function() { form.reset(); clearError(); clearResult(); });
})();