如果Smarty传来的变量是字符串时：

$strData = "abc";
$this->assign("strData", strData);

JavaScript调用：

<script type="text/javascript">
    ......
	......
	let strData = '{$strData}';
	console.log(strData);
	......
	......
</script>

如果Smarty传其他数据时，如数组，需要用json_encode包下：

$fundXData = [];
$fundYData = [];
......
......
$this->assign("fundXData", json_encode($fundXData));
$this->assign("fundYData", json_encode($fundYData));
$this->display("dashboard.html")

JavaScript调用：

<script type="text/javascript">
    ......
	......
	xAxis: {
        ......
        data: {$fundXData},
        ......
    }
	......
	......
</script>