我在下面的代码中找到了使用CSS，HTML和JavaScript创建的联系表单。无论如何在＃34;附件＆＃34;旁边都有一个标签。按钮，显示用户选择上传的文件的名称？任何事都有帮助，欢呼。
function openNav() {
document.getElementById("myNav").classList.remove("collapsed");
var input = document.getElementById("txtDetail");
var value = input.value;
var label = document.getElementById("labelDetail");
label.innerHTML = value;
var input = document.getElementById("txtName");
var value = input.value;
var label = document.getElementById("labelName");
label.innerHTML = value;
var input = document.getElementById("txtNumber");
var value = input.value;
var label = document.getElementById("labelNumber");
label.innerHTML = value;
var input = document.getElementById("txtEmail");
var value = input.value;
var label = document.getElementById("labelEmail");
label.innerHTML = value;
document.getElementById("myNav").style.width = "100%";
}
function closeNav() {
document.getElementById("myNav").style.width = "0%";
document.getElementById("myNav").classList.add("collapsed");
} * {
margin: 0;
padding: 0;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-font-smoothing: antialiased;
-moz-font-smoothing: antialiased;
-o-font-smoothing: antialiased;
font-smoothing: antialiased;
text-rendering: optimizeLegibility;
}
.container {
width: 100%;
margin: 0 auto;
position: relative;
}
#contact input[type="text"],
#contact input[type="email"],
#contact input[type="tel"],
#contact textarea,
#contact button[type="submit"] {
font: 400 12px/16px "Verdana", Verdana;
}
#contact {
background: #F9F9F9;
padding: 25px;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
height:477px;
}
#contact h3 {
display: block;
font-family:Verdana;
font-size: 24px;
font-weight: 300;
margin-bottom: 10px;
}
#contact h4 {
margin: 5px 0 15px;
display: block;
font-family:Verdana;
font-size: 13px;
font-weight: 400;
}
#contact h5 {
text-decoration:underline;
display: block;
color:#4CAF50;
font-family:Verdana;
font-size: 19px;
font-weight: normal;
margin-bottom: 10px;
}
#contact h6 {
text-decoration:underline;
display: block;
text-align:left;
color:#4CAF50;
font-family:Verdana;
font-size: 15px;
font-weight: normal;
margin-bottom: 10px;
}
.fieldset {
border: medium none !important;
margin: 0 0 10px;
min-width: 100%;
padding: 0;
width: 100%;
}
#contact input[type="text"],
#contact input[type="email"],
#contact input[type="tel"],
#contact textarea {
width: 100%;
border: 1px solid #ccc;
background: #FFF;
margin: 0 0 5px;
padding: 10px;
}
#contact input[type="text"]:hover,
#contact input[type="email"]:hover,
#contact input[type="tel"]:hover,
#contact textarea:hover {
-webkit-transition: border-color 0.3s ease-in-out;
-moz-transition: border-color 0.3s ease-in-out;
transition: border-color 0.3s ease-in-out;
border: 1px solid #aaa;
}
#contact textarea {
height: 100px;
max-width: 100%;
resize: none;
}
#button{
float:right;
cursor: pointer;
padding: 13px 32px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
font-size: 15px;
}
#button:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
#button:active {
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
#contact input:focus,
#contact textarea:focus {
outline: 0;
border: 1px solid #aaa;
}
::-webkit-input-placeholder {
color: #888;
}
:-moz-placeholder {
color: #888;
}
::-moz-placeholder {
color: #888;
}
:-ms-input-placeholder {
color: #888;
}
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 13px;
font-size: 16px;
width:125px;
height:45px;
border: none;
cursor: pointer;
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {
display: block;
}
.dropdown:hover .dropbtn {
background-color: #3e8e41;
}
input[type="file"]{
display: none;
}
.custom-file-upload {
cursor: pointer;
padding: 13px 16px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
font-size: 15px;
display: inline-block;
vertical-align: top;
text-align: center;
}
.custom-file-upload:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
.custom-file-upload:active{
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
.overlay {
height: 477px;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #F9F9F9;
overflow-x: hidden;
transition: 0.5s;
padding-top: 25px;
padding-bottom: 25px;
padding-left: 25px;
padding-right: 25px;
}
.overlay.collapsed {
padding-top: 25px;
padding-bottom: 25px;
padding-left: 0;
padding-right: 0;
}
.overlay-content {
position: relative;
/*top: 5%;*/
width: 100%;
height: 100%;
text-align: center;
/*margin-top: 25px;*/
}
.overlay-content .container {
height: 100%;
}
.overlay-content fieldset:last-child {
position: absolute;
bottom: 0;
margin-bottom: 0;
}
.overlay a {
padding: 5px;
margin-top:-15px;
text-decoration: none;
font-size: 36px;
color: #818181;
display: block;
transition: 0.3s;
z-index: 100;
}
.overlay a:hover, .overlay a:focus {
color: #bababa;
}
.overlay .closebtn {
position: absolute;
top: 15px;
right: 15px;
font-size: 40px;
}
@media screen and (max-height: 450px) {
.overlay a {font-size: 20px}
.overlay .closebtn {
font-size: 40px;
top: 15px;
right: 35px;
}
}
#contact-submit{
float:right;
cursor: pointer;
font-size:15px;
padding: 13px 32px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
}
#contact-submit:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
#contact-submit:active {
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
#label{
float:left;
text-decoration:underline;
font-family:Verdana;
font-size:15px;
}
#labelDetail{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
text-align:left;
max-height: 135px;
overflow: auto;
}
#labelName{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelNumber{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelEmail{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelAttach{
float:left;
text-decoration:underline;
font-family:Verdana;
padding-top:12px;
color:#4CAF50;
}
#labelFile{
float:left;
font-family:Verdana;
padding-top:12px;
padding-left:5px;
} <div class="container">
<form id="contact">
<h3>Connect With HR</h3>
<fieldset class="fieldset">
<div class="dropdown">
<button class="dropbtn">Location</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Category</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</fieldset>
<fieldset class="fieldset">
<textarea id="txtDetail" placeholder="Detail...." tabindex="2"></textarea>
</fieldset>
<h4>Contact Information</h4>
<fieldset class="fieldset">
<input id="txtName" placeholder="Name" type="text" tabindex="4" >
<input id="txtNumber" placeholder="Preferred Contact Number" type="tel" tabindex="5">
<input id="txtEmail" placeholder="Preferred Email" type="email" tabindex="6">
</fieldset>
<fieldset class="fieldset">
<label for="file-upload" class="custom-file-upload">
<i class="fa fa-cloud-upload"></i> Attachment
</label>
<input id="file-upload" type="file"/>
<div id="myNav" class="overlay collapsed">
<a href="javascript:void(0)" class="closebtn" onclick="closeNav()">×</a>
<div class="overlay-content">
<div class="container">
<h5>Summary</h5>
<fieldset class="fieldset">
<label id="label">Location:</label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Category:</label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Detail:</label>
<label id="labelDetail"></label>
</fieldset>
<h6>Contact Information</h6>
<fieldset class="fieldset">
<label id="label">Name:</label>
<label id="labelName"></label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Preferred Contact Number:</label>
<label id="labelNumber"></label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Preferred Email:</label>
<label id="labelEmail"></label>
</fieldset>
<fieldset class="fieldset">
<label id="labelAttach">Attachment:</label>
<label id="labelFile">File</label>
<button name="submit" id="contact-submit" data-submit="...Sending">Submit</button>
</fieldset>
</div>
</div>
</div>
<span id="button" onclick="openNav()">Preview</span>
</fieldset>
</form>
</div>
答案 0 :(得分：1)
在<span> <label>事件的for处获取<input type="file"> change后<input type="file"> .name引用.files[0]元素的元素。 span的{{1}}，将值设置为.innerHTML span。
答案中省略了样式function openNav() {
document.getElementById("myNav").classList.remove("collapsed");
var input = document.getElementById("txtDetail");
var value = input.value;
var label = document.getElementById("labelDetail");
label.innerHTML = value;
var input = document.getElementById("txtName");
var value = input.value;
var label = document.getElementById("labelName");
label.innerHTML = value;
var input = document.getElementById("txtNumber");
var value = input.value;
var label = document.getElementById("labelNumber");
label.innerHTML = value;
var input = document.getElementById("txtEmail");
var value = input.value;
var label = document.getElementById("labelEmail");
label.innerHTML = value;
document.getElementById("myNav").style.width = "100%";
}
function closeNav() {
document.getElementById("myNav").style.width = "0%";
document.getElementById("myNav").classList.add("collapsed");
}
document.getElementById("file-upload")
.addEventListener("change", function() {
this.labels[0].nextElementSibling.innerHTML = this.files[0].name;
})。
* {
margin: 0;
padding: 0;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-font-smoothing: antialiased;
-moz-font-smoothing: antialiased;
-o-font-smoothing: antialiased;
font-smoothing: antialiased;
text-rendering: optimizeLegibility;
}
.container {
width: 100%;
margin: 0 auto;
position: relative;
}
#contact input[type="text"],
#contact input[type="email"],
#contact input[type="tel"],
#contact textarea,
#contact button[type="submit"] {
font: 400 12px/16px "Verdana", Verdana;
}
#contact {
background: #F9F9F9;
padding: 25px;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
height:477px;
}
#contact h3 {
display: block;
font-family:Verdana;
font-size: 24px;
font-weight: 300;
margin-bottom: 10px;
}
#contact h4 {
margin: 5px 0 15px;
display: block;
font-family:Verdana;
font-size: 13px;
font-weight: 400;
}
#contact h5 {
text-decoration:underline;
display: block;
color:#4CAF50;
font-family:Verdana;
font-size: 19px;
font-weight: normal;
margin-bottom: 10px;
}
#contact h6 {
text-decoration:underline;
display: block;
text-align:left;
color:#4CAF50;
font-family:Verdana;
font-size: 15px;
font-weight: normal;
margin-bottom: 10px;
}
.fieldset {
border: medium none !important;
margin: 0 0 10px;
min-width: 100%;
padding: 0;
width: 100%;
}
#contact input[type="text"],
#contact input[type="email"],
#contact input[type="tel"],
#contact textarea {
width: 100%;
border: 1px solid #ccc;
background: #FFF;
margin: 0 0 5px;
padding: 10px;
}
#contact input[type="text"]:hover,
#contact input[type="email"]:hover,
#contact input[type="tel"]:hover,
#contact textarea:hover {
-webkit-transition: border-color 0.3s ease-in-out;
-moz-transition: border-color 0.3s ease-in-out;
transition: border-color 0.3s ease-in-out;
border: 1px solid #aaa;
}
#contact textarea {
height: 100px;
max-width: 100%;
resize: none;
}
#button{
float:right;
cursor: pointer;
padding: 13px 32px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
font-size: 15px;
}
#button:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
#button:active {
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
#contact input:focus,
#contact textarea:focus {
outline: 0;
border: 1px solid #aaa;
}
::-webkit-input-placeholder {
color: #888;
}
:-moz-placeholder {
color: #888;
}
::-moz-placeholder {
color: #888;
}
:-ms-input-placeholder {
color: #888;
}
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 13px;
font-size: 16px;
width:125px;
height:45px;
border: none;
cursor: pointer;
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {
display: block;
}
.dropdown:hover .dropbtn {
background-color: #3e8e41;
}
input[type="file"]{
display: none;
}
.custom-file-upload {
cursor: pointer;
padding: 13px 16px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
font-size: 15px;
display: inline-block;
vertical-align: top;
text-align: center;
}
.custom-file-upload:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
.custom-file-upload:active{
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
.overlay {
height: 477px;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #F9F9F9;
overflow-x: hidden;
transition: 0.5s;
padding-top: 25px;
padding-bottom: 25px;
padding-left: 25px;
padding-right: 25px;
}
.overlay.collapsed {
padding-top: 25px;
padding-bottom: 25px;
padding-left: 0;
padding-right: 0;
}
.overlay-content {
position: relative;
/*top: 5%;*/
width: 100%;
height: 100%;
text-align: center;
/*margin-top: 25px;*/
}
.overlay-content .container {
height: 100%;
}
.overlay-content fieldset:last-child {
position: absolute;
bottom: 0;
margin-bottom: 0;
}
.overlay a {
padding: 5px;
margin-top:-15px;
text-decoration: none;
font-size: 36px;
color: #818181;
display: block;
transition: 0.3s;
z-index: 100;
}
.overlay a:hover, .overlay a:focus {
color: #bababa;
}
.overlay .closebtn {
position: absolute;
top: 15px;
right: 15px;
font-size: 40px;
}
@media screen and (max-height: 450px) {
.overlay a {font-size: 20px}
.overlay .closebtn {
font-size: 40px;
top: 15px;
right: 35px;
}
}
#contact-submit{
float:right;
cursor: pointer;
font-size:15px;
padding: 13px 32px;
width:125px;
height:45px;
border: none;
font-family:Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
}
#contact-submit:hover{
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
#contact-submit:active {
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
#label{
float:left;
text-decoration:underline;
font-family:Verdana;
font-size:15px;
}
#labelDetail{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
text-align:left;
max-height: 135px;
overflow: auto;
}
#labelName{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelNumber{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelEmail{
padding-left:25px;
float:left;
font-family:Verdana;
font-size:13px;
}
#labelAttach{
float:left;
text-decoration:underline;
font-family:Verdana;
padding-top:12px;
color:#4CAF50;
}
#labelFile{
float:left;
font-family:Verdana;
padding-top:12px;
padding-left:5px;
}<div class="container">
<form id="contact">
<h3>Connect With HR</h3>
<fieldset class="fieldset">
<div class="dropdown">
<button class="dropbtn">Location</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Category</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</fieldset>
<fieldset class="fieldset">
<textarea id="txtDetail" placeholder="Detail...." tabindex="2"></textarea>
</fieldset>
<h4>Contact Information</h4>
<fieldset class="fieldset">
<input id="txtName" placeholder="Name" type="text" tabindex="4" >
<input id="txtNumber" placeholder="Preferred Contact Number" type="tel" tabindex="5">
<input id="txtEmail" placeholder="Preferred Email" type="email" tabindex="6">
</fieldset>
<fieldset class="fieldset">
<label for="file-upload" class="custom-file-upload">
<i class="fa fa-cloud-upload"></i> Attachment
</label><span></span>
<input id="file-upload" type="file"/>
<div id="myNav" class="overlay collapsed">
<a href="javascript:void(0)" class="closebtn" onclick="closeNav()">×</a>
<div class="overlay-content">
<div class="container">
<h5>Summary</h5>
<fieldset class="fieldset">
<label id="label">Location:</label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Category:</label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Detail:</label>
<label id="labelDetail"></label>
</fieldset>
<h6>Contact Information</h6>
<fieldset class="fieldset">
<label id="label">Name:</label>
<label id="labelName"></label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Preferred Contact Number:</label>
<label id="labelNumber"></label>
</fieldset>
<fieldset class="fieldset">
<label id="label">Preferred Email:</label>
<label id="labelEmail"></label>
</fieldset>
<fieldset class="fieldset">
<label id="labelAttach">Attachment:</label>
<label id="labelFile">File</label>
<button name="submit" id="contact-submit" data-submit="...Sending">Submit</button>
</fieldset>
</div>
</div>
</div>
<span id="button" onclick="openNav()">Preview</span>
</fieldset>
</form>
</div>{
"VARIABLE_1":"0.0000",
"VARIABLE_2":"True",
"VARIABLE_3":"String"
}
答案 1 :(得分：0)
此代码段正如您所愿！看看吧。
我添加了 JS ，您可以轻松地将其复制并粘贴到您的代码中并让它完成工作！
在这段代码中，我得到value元素的input，这是一个路径。我们只需substring得到我们想要的东西 - 文件名。
document.getElementById('file-upload').onchange = showText;
function showText() {
var fileVal = this.value;
var last = fileVal.lastIndexOf("\\");
if (last >= 0) {
fileVal = fileVal.substring(last + 1);
}
document.getElementById('fileValue').innerText = fileVal;
}* {
margin: 0;
padding: 0;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-font-smoothing: antialiased;
-moz-font-smoothing: antialiased;
-o-font-smoothing: antialiased;
font-smoothing: antialiased;
text-rendering: optimizeLegibility;
}
input[type="file"] {
display: none;
}
.custom-file-upload {
cursor: pointer;
padding: 13px 16px;
width: 125px;
height: 45px;
border: none;
font-family: Verdana;
background: #4CAF50;
color: #FFF;
margin: 0 0 5px;
font-size: 15px;
display: inline-block;
vertical-align: top;
text-align: center;
}
.custom-file-upload:hover {
background: #43A047;
-webkit-transition: background 0.3s ease-in-out;
-moz-transition: background 0.3s ease-in-out;
transition: background-color 0.3s ease-in-out;
}
.custom-file-upload:active {
box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}<label for="file-upload" class="custom-file-upload">
<i class="fa fa-cloud-upload"></i> Attachment
</label>
<input id="file-upload" type="file" />
<p id="fileValue" style="display: inline-block"></p>