BootStrap的模式对话框比Qt的用起来简单。

如要实现下面效果：

对应的html代码如下：

<button type="button" class="btn btn-dark border text-white w-100" data-bs-toggle="modal" data-bs-target="#exampleModalToggle">购买</button>

<div class="modal fade" style="border-color: white" id="exampleModalToggle" aria-hidden="true" aria-labelledby="exampleModalToggleLabel" tabindex="-1">
	<div class="modal-dialog modal-dialog-centered">
		<div class="modal-content bg-dark text-white" style="border-color: white">
			<div class="modal-header bg-dark text-white">
				<h5 class="modal-title" id="exampleModalToggleLabel">提示</h5>
				<button type="button" class="bg-transparent border-0" data-bs-dismiss="modal" aria-label="Close"><img src="./icon/x-circle-fill.svg"></button>
			</div>
			<div class="modal-body bg-dark text-white">
				是否确认购买
			</div>
			<div class="modal-footer">
				<button type="button" class="btn text-white border bg-dark" data-bs-dismiss="modal">取消</button>
				<button type="button" class="btn text-white border bg-dark" onclick="purchaseProduction()">确定</button>
			</div>
		</div>
	</div>
</div>

其中点击确定后调用purchaseProduction()对应的js如下：

<script>
     function purchaseProduction(){

     	console.log("here");
 	}
</script>