【get】
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="productPriceContainer">
<div class="price">Asd</div>
<div class="price">Asd</div>
</div>
<script>
var elements = document.getElementById("productPriceContainer").getElementsByClassName("price");
for (var i = 0; i < elements.length; i++) {
elements[i].innerHTML = "Asdf" + i;
}
</script>
</body>
</html>
