<div class="input-box cleartfix"> <label class="title">手机号码</label> <div class="input-wrapper"> <input type="text" id="myBtn" name="Name" maxlength="11" > <label id="demoe" class ="placeholder" style="display: block;">请输入手机号</label> <i class="ok"></i> </div></div></div> <script> document.getElementById("myBtn").addEventListener("onclick", function() { document.getElementById("demoe").style.display = "none"; console.log(123); });</script>这样写不知道为啥不起作用 求大佬帮忙看一下!!!!
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