本文介绍了如何将四个文本框值的内容复制到HTML中的一个文本区域?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! 我的表单包含四个 文本框和一个 textarea 字段。表格就像请求表格。我希望将四个文本框的内容复制到 textarea 。为此,我写了 onkeyup 事件,同时将其值复制到 textarea ,但我希望将所有四个文本框值复制到文本区域。这是我为onkeyup事件编写的代码 < input type = text id = C.name name = C.name 必需 önkeyup = document.getElementById('message')。value = this.value > 但是此事件只复制一个文本框值。我希望所有文本框值都被复制到textarea。 我应该怎么做才能将所有文本框的值复制到textarea?解决方案 我这里有3个文本框。第三个是通过其他两个文本框更新。同样聪明的你可以根据你的要求进行整合 HTML Fisrt名称: - < 输入 type = text id = 首先 > < / input > 姓氏: - < 输入 type = text id = last onkeyUp = copyText() > < / input > 全名: - < input 类型 = text id = full > < / input > JS function copyText(){ first = document .getElementById( first); last = document .getElementById( last ); full = document .getElementById( full ); full.value = first.value + ' ' + last.value; } I have a form which contains four textboxes and one textarea field. the form something like request form. I want the content of four textboxes get copied to textarea. For this i have write onkeyup event which simultaneously copy its value to textarea but i want all the four textbox values get copied to the text area. This is the code i write for onkeyup event<input type="text" id="C.name" name="C.name" required önkeyup="document.getElementById('message').value=this.value">But with this event only one textbox value get copied. I want all the textbox value get copied to textarea.What should i do so that the value of all textbox get copied to textarea? 解决方案 I have 3 text boxes here. and 3rd one is updating by other two text boxes. Like wise you can intergrate it to your requirementHTMLFisrt name:-<input type="text" id="first" ></input>Last Name:-<input type="text" id="last" onkeyUp="copyText()" ></input>Full Name:-<input type="text" id="full" ></input>JSfunction copyText() {first = document.getElementById("first");last = document.getElementById("last");full = document.getElementById("full");full.value = first.value + ' ' + last.value;} 这篇关于如何将四个文本框值的内容复制到HTML中的一个文本区域?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云! 08-30 17:45