Javascript(0)以及HTML5中的外部Javascript
Javascript(0) along with external Javascript in HTML5
我想知道是否有人可以帮助我。我坚持这段代码，我的脚本切换按钮，当我点击它，当我点击切换窗口外，它会消失，经过2小时的搜索和测试出来。我还是想不明白。目前的脚本甚至不工作，切换菜单甚至没有出来。当运行外部jscript时，如topmenusscript .js它说引用错误，函数未定义ReferenceError: DropdownFunction is not defined
HTML5<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Tutorial_Site.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
#form1 {
width: 1021px;
}
.TopPanel {}
body,html{
height:100%;
width:100%;
overflow:auto;
margin:0;
padding:0;
}
.TopBannerImage {
background:url(../Images/topPanel_3croped.png) center;
height:315px;
min-width:100%;
background-repeat:no-repeat;
}
</style>
<link href="CssFiles/MainPage.css" rel="stylesheet" type="text/css" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body style="background-color:#3F3939" class ="Test">
<div id="TopPanelMenuDiv" style="background-color:black;">
<ul id="ul_Top">
<li><a class ="active" href="#home">Home</a></li>
<li style="float:right !important"><a href="#news">News</a></li>
<li class ="dropdown">
<a href="javascript:void(0)" class="dropbtn" onclick="DropdownFunction()">Dropdown</a>
<div class="dropdown-content" id="MenuDropdown">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</li>
</ul>
</div>
<div class="TopBannerImage">
</div>
<!--All Site Scripts -->
<!-- <script>
function DropdownFunction() {
document.getElementById("MenuDropdown").classList.toggle("show");
}
window.onclick = function (e) {
if (!e.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
for (var d = 0; d < dropdowns.length; d++) {
var openDropdown = dropdowns[d];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
</script> -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="/JavaScript/jquery-3.1.1.min.js" ></script>
<script type ="text/javascript" src="/JavaScript/TopMenuScript.js" ></script>
<script src="Scripts/jquery-1.10.2.min.js"></script>
</body>
<script>
function DropdownFunction() {
document.getElementById("MenuDropdown").classList.toggle("show");
}
window.onclick = function (e) {
if (!e.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
for (var d = 0; d < dropdowns.length; d++) {
var openDropdown = dropdowns[d];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
</script>
使用相同脚本的外部脚本链接
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="/JavaScript/jquery-3.1.1.min.js" ></script>
<script type ="text/javascript" src="/JavaScript/TopMenuScript.js" ></script>
<script src="Scripts/jquery-1.10.2.min.js"></script>
.TopPanel
{
border-style:ridge;
border-width:2px;
border-color:black;
margin:auto;
padding: 0px;
text-align: center;
background-size:cover;
background-image url(../Images/background.jpg);
background-repeat: no-repeat;
}
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: black;
height: 49px;
}
li{
float:left;
}
li a, .dropbin {
display:inline-block;
color:white;
text-align:center;
padding:14px 16px;
text-decoration:none;
}
li a, .dropdown:hover .dropbtn {
background-color:black;
}
li.dropdown {
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)
}
.dropdown-content a {
color:black;
padding:12px 16px;
text-decoration: none;
display:block;
}
.dropdown-content .dropdown-content {
display:block;
}
body{margin:0;padding:0;}
.show {display:block;}
我已经为你清理并修复了一切。在visual studio 2015中运行它，它工作得很好，也修复了你的UI。问题的主要原因，语法错误和拼写错误。你要确保javascript中没有语法错误。一个错误的语法就会导致。我相信我们在你的页面上看到了没有看到的错误。在编码中，它是区分大小写的-继续编程，不管你失败了多少次，因为学习是没有尽头的
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Tutorial_Site.WebForm1" %>
HTML5代码
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
#form1 {
width: 1021px;
}
.TopPanel {}
body,html{
height:100%;
width:100%;
overflow:auto;
margin:0;
padding:0;
}
.TopBannerImage {
background:url(../Images/topPanel_3croped.png) center;
height:315px;
min-width:100%;
background-repeat:no-repeat;
}
</style>
<link href="CssFiles/MainPage.css" rel="stylesheet" type="text/css" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body style="background-color:#3F3939" class ="Test">
<div id="TopPanelMenuDiv" style="background-color:black;">
<ul id="ul_Top">
<li><a class ="active" href="#home">Home</a></li>
<li style="float:right !important"><a href="#news">News</a></li>
<li class ="dropdown">
<a href="javascript:void(0)" class="dropbtn" onclick="DropdownFunction()">Dropdown</a>
<div class="dropdown-content" id="MenuDropdown">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</li>
</ul>
</div>
<div class="TopBannerImage">
</div>
<!--All Site Scripts -->
<!-- <script>
function DropdownFunction() {
document.getElementById("MenuDropdown").classList.toggle("show");
}
window.onclick = function (e) {
if (!e.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
for (var d = 0; d < dropdowns.length; d++) {
var openDropdown = dropdowns[d];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
</script> -->
<script src="/JavaScript/jquery-3.1.1.min.js" ></script>
<script type ="text/javascript" src="JavaScript/TopMenuScript.js" ></script>
</body>
</html>
JavaScript代码
function DropdownFunction() {
document.getElementById("MenuDropdown").classList.toggle("show");
}
window.onclick = function (e) {
if (!e.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
for (var d = 0; d < dropdowns.length; d++) {
var openDropdown = dropdowns[d];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
css代码
.TopPanel
{
border-style:ridge;
border-width:2px;
border-color:black;
margin:auto;
padding: 0px;
text-align: center;
background-size:cover;
background-image url(../Images/background.jpg);
background-repeat: no-repeat;
}
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #333;
height: 49px;
}
li{
float:left;
}
li a, .dropbin {
display:inline-block;
color:white;
text-align:center;
padding:14px 16px;
text-decoration:none;
}
li a, .dropdown:hover .dropbtn {
background-color:black;
}
li.dropdown {
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)
}
.dropdown-content a {
color:white;
padding:12px 16px;
text-decoration: none;
display:block;
text-align:left;
}
.dropdown-content .dropdown-content {
display:block;
}
body{margin:0;padding:0;}
.dropdown-content a:hover {background-color:#f1f1f1}
.show {display:block;}
#BannerImage {
background-image: url('/Images/topPanel_3croped.png');
width:100%;
height:100%;
background-repeat:no-repeat;
}
#my-div{
margin-left:auto;
margin-right:auto;
}
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