//点击a链接，执行一段js代码
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<a id="jsPswEdit" class="set-item" href="javascript:;">修改密码</a>
</body>
</html>
<script type="text/javascript">
document.getElementById('jsPswEdit').addEventListener('click', function(e) {
e.preventDefault();
// 当<a>触发click时，处理业务
alert("111");
}, false);
</script>