我有以下 HTML 代码。如果我想<a>在单击时选择元素,为什么这不起作用?$('input[name="USR_NewPassword"] span > a').on('click', function(event) { alert()});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><input type="password" name="USR_NewPassword" class="form-control" maxlength="50" required><span class="input-group-addon"> <a href=""><i class="fa fa-eye"></i></a> </span>
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