黄瓜 3.5 元/斤，西红柿 2.7 元/斤，2 斤黄瓜 3 斤西红柿多少钱？

<h1>2 斤黄瓜 3 斤西红柿多少钱？</h1>
<p>黄瓜价格：<span>3.5</span> 元/斤</p>
<p>西红柿价格：<span>2.7</span> 元/斤</p>
<p>总价：<span></span> 元</p>
<script>
const cucumberPrice = document.querySelector('span:nth-of-type(1)');
const tomatoPrice = document.querySelector('span:nth-of-type(2)');
const totalPrice = document.querySelector('span:nth-of-type(3)');
<p>const cucumberPriceValue = parseFloat(cucumberPrice.innerHTML);
const tomatoPriceValue = parseFloat(tomatoPrice.innerHTML);</p>
<p>const totalWeight = 2 + 3;
const totalCucumberPrice = totalWeight * cucumberPriceValue;
const totalTomatoPrice = totalWeight * tomatoPriceValue;
const totalPriceValue = totalCucumberPrice + totalTomatoPrice;</p>
<p>totalPrice.innerHTML = totalPriceValue.toFixed(2);
</script></p>