<div class="form-group">
	<div class="form-label">选择币种</div>
	<div class="form-row form-coin-row flex-center">
		<div class="flex_bd">
			<input type="text" class="weui-input" id="coinVal" placeholder="" readonly="readonly" value="USDT">
		</div>
		<div class="iconfont icon-right"></div>
	</div>
</div>
<div class="form-group">
	<div class="form-label">传输网络</div>
	<ul class="web-tags clearfix">
		<li class="active"><a href="javascript:;">TRC20</a></li>
	</ul>
</div>
<div class="form-group">
	<div class="form-label">充值金额</div>
	<div class="form-row">
		<div class="flex_bd">
			<input type="text" class="weui-input" placeholder="请输入">
		</div>
	</div>
</div>

$('#valPrice').val(($value * 5.6).toFixed(2))