<html>
<button id="clickme" type="button" onclick="display_alter()">Click Me</button>
<script>
function display_alter() {
alert("我是弹窗！！！！！")
}
</script>
</html>
Available coupons under your LCSC account will be shown on the LCSC checkout page after you choose the shipping method at the SHIPPING steps：
Note:
1. One coupon has no cash value and no refunds or cash alternatives will be offered.
2. One coupon can not be reused. But if you apply for the coupon and you delete/remove your order before the payment, the coupon will be available for your future order.
3. One coupon couldn't be split for separate use, so make sure the order value will equal or exceed the coupon values.
