JS binding function in several ways

1 through event binding function

<a οnclick="return Modalshow()">添加数据</a>

2 binding by jquery

<script src="/static/jquery-3.4.1.js"></script> //引入jquery
<a id="newbox">添加数据</a> //定义标签
<script>  
	$(function() {	//定义绑定函数
	    $("#newbox").click(function(){ 	//定义函数并通过id绑定控件
	        alert("1234");
	    })
	})
</script>