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JavaScript添加、查找、删除元素的一个实例

2024-04-27 14:07:45
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javaScript添加、查找、删除元素的一个实例

<!DOCTYPE html><html><head><meta charset="utf-8"><title>测试文件</title><style>.reply {    width: 500px;    height: 100%;    overflow: hidden;    background-color:#CCC;    margin-top: 10px;}.infoArea {    width: 380px;    height: 100%;    overflow: hidden;}.Words {    width: 380px;    height: auto;    margin: 5px 0px;    float: left;    font-size: 14px;}.time {    margin-left: 10px;    margin-bottom: 3px;    width: 150px;    height: 20px;    line-height: 20px;    float: left;    font-family: 楷体;    font-size: 14px;    color: #999;}.replyButton {    width: 60px;    height: 20px;    float: left;    margin-bottom: 10px;}.replyButton input {    font-size: 12px;}#cancelButton {    visibility: hidden;}</style></head><body><div class="reply">  <div class="infoArea">    <div class="words"><a href="">中央情报局</a>:中央情报局</div>    <div class="time">2014年5月4日21:56</div>    <div class="replyButton">      <input type="button"  id="submitButton" value="回复" onClick="showReplyArea(this)" />    </div>    <div class="replyButton">      <input type="button"  id="cancelButton" value="取消" onClick="hideReplyArea(this)" />    </div>  </div></div><script>//显示文本框的函数function showReplyArea(src){    inputText = document.createElement("DIV");    inputText.className = "inputText";    inputText.style.width = '100%';    inputText.style.height = '75px';    inputText.style.margin = '3px 0';    inputText.style.CSSFloat = 'left';        var grandfather = src.parentNode.parentNode.parentNode;    grandfather.appendChild(inputText);        form1 = document.createElement("FORM");    form1.action = "";    form1.method = "post";    inputText.appendChild(form1);        inputTextArea = document.createElement("TEXTAREA");    inputTextArea.style.width = '380px';    inputTextArea.style.height = '40px';    inputTextArea.style.marginLeft = '60px';    inputTextArea.style.marginTop = '3px';    inputTextArea.style.cssFloat = 'left';    inputTextArea.style.resize = 'none';        textSubmit = document.createElement("INPUT");    textSubmit.type = 'submit';    textSubmit.value = '提交';    textSubmit.style.marginLeft = '80px';    textSubmit.style.cssFloat = 'left';        form1.appendChild(inputTextArea);    form1.appendChild(textSubmit);        cancelButton = grandfather.getElementsByTagName("INPUT").item(1);    cancelButton.style.visibility = 'visible';    submitButton = src;    submitButton.disabled = true;}//隐藏文本框的函数function hideReplyArea(src){    var grandfather = src.parentNode.parentNode.parentNode;    var inputText = grandfather.getElementsByClassName('inputText').item(0);    grandfather.removeChild(inputText);        cancelButton = src;    cancelButton.style.visibility = 'hidden';    submitButton = grandfather.getElementsByTagName("INPUT").item(0);    submitButton.disabled = false;}//下面为调试时测试用函数,做完后就没用了,但也是很经典的一段代码,就留在这里了。function showNode(){    var i = 4;    submitButton = document.getElementById('submitButton');    i = submitButton.parentNode.parentNode.getElementsByTagName("INPUT").item(1).value;    alert(i);}</script></body></html>


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