效果图展示
实现用户所传内容 以及时间
<script>
window.onload = function(){
var oMessageBox = document.getElementById("messageBox");
var oInput = document.getElementById("myInput");
var oPostBtn = document.getElementById("doPost");
oPostBtn.onclick = function(){
if(oInput.value){
//写入发表留言的时间
var oTime = document.createElement("div");
oTime.className = "time";
var myDate = new Date();
oTime.innerHTML = myDate.toLocaleString();
oMessageBox.appendChild(oTime);
//写入留言内容
var oMessageContent = document.createElement("div");
oMessageContent.className = "message_content";
oMessageContent.innerHTML = oInput.value;
oInput.value = "";
oMessageBox.appendChild(oMessageContent);
}
}
}
</script>
通过获取input的输入焦点事件抓取内容，传递给留言板的div来展示
<body>
<div class="content">
<div class="title">用户留言</div>
<div class="message_box" id="messageBox"></div>
<div><input id="myInput" type="text" placeholder="请输入留言类容"><button id="doPost">提交</button></div>
</div>
</body>