我以管理员身份运行Visual Studio 2015,启动一个新项目,ASP.NET应用程序,清空4.5.2,然后只需添加一个简单的html页面.当我尝试使用IIS Express启动时,我只是等待本地主机.如果我在IIS local下执行此操作,它可以正常工作.
我在笔记本电脑上正常工作,在桌面上安装了Windows 10,然后重新安装了VS2015,但结果仍然相同.IIS Express启动但网页一直在等待本地主机
我已经看了很多解决方案,但一直无法解决问题.我是所有这一切的新手,所以会欣赏如何解决的一步一步的说明.
它是一个.Net Framework 4.5.2应用程序.
我有以下logout()函数,适用于大多数浏览器,但不适用于safari.safari中的问题是在注销后如果用户点击后退按钮,他们从缓存而不是登录屏幕获取上一页.有没有办法调整注销功能来处理这个问题?
function logout()
{
// unset any session variables
$_SESSION = [];
// expire cookie
if (!empty($_COOKIE[session_name()]))
{
// setcookie(session_name(), "", time() - 42000);
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]);
}
// destroy session
session_destroy();
}
Run Code Online (Sandbox Code Playgroud) 在第7章中,我得到了以下输出
--- !ruby/hash-with-ivars:ActionController::Parameters
elements:
controller: static_pages
action: home
ivars:
:@permitted: false
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有人可以解释一下hash-with-ivars来自哪里以及ivars:@permitted:false意味着什么?
我正在努力理解forEach和map之间的区别.在下面的渲染函数中,如果'forEach'被'map'替换,它就可以工作.我不明白为什么它不适用于'forEach'.两个方法都存在{item.id}和{item.text}.那么,为什么在使用'forEach'时没有设置'TodoItem'的道具?
render() {
return(
<ul>
{this.props.items.forEach(function(item) {
return (
<TodoItem id={item.id} text={item.text} />)
})}
</ul>
);
}
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因此,如果'forEach'没有返回任何内容,那么它也不起作用:
render() {
return(
<ul>
{this.props.items.forEach(function(item) {
<TodoItem id={item.id} text={item.text} />
})}
</ul>
);
}
Run Code Online (Sandbox Code Playgroud) I start with:
constructor() {
super();
this.state = {
lists: ['Dogs','Cats'],
items: {Dogs: [{name: "Snoopy"}, {name: "Lola"}, {name: "Sprinkles"}],
Cats: [{name: "Felidae"}, {name: "Garfiled"}, {name: "Cat in the Hat"}] }
};
}
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then I have my addItem function:
handleAddItem(s) {
var key = Object.keys(s)[0];
var value = s[key];
var allItems = {...this.state.items};
allItems[key].push({name: value});
this.setState({items: allItems});
}
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elsewhere I define s as:
var s={};
s[this.props.idName] = this.refs.id.value;
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这可行,但我想知道这是否是将元素添加到项中的键之一的正确方法。AllItems确实指向this.state.items,我认为它应该是深层副本,但我不确定如何做到这一点。
似乎items是一个包含键/值对的对象,其中值是一个数组。那是对的吗?我在哪里可以学习如何操纵这样的结构?
打印多个对象时,是否可以在console.log中获得新行?
假设我们有console.log(a,b,c)在那里a,b和c都是对象。有没有办法使对象之间换行?
我试过了,console.log(a,'\n',b,'\n',c)但是在节点中不起作用
使用 create-react-native-app 创建新应用程序现在会生成新警告。我需要做些什么来纠正警告?例如,我将如何更新列出的组件:
ExpoRootComponent, RootErrorBoundary, Text, View
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这是新的警告:(所有这些都可以忽略吗?create-react-native-app 会更新为使用 0.55.x 吗?)
14:30:04: Warning: componentWillMount is deprecated and will be removed in
the next major version. Use componentDidMount instead. As a temporary
workaround, you can rename to UNSAFE_componentWillMount.
Please update the following components: ExpoRootComponent,
RootErrorBoundary, Text, View
Learn more about this warning here:
xxx:/fb.me/react-async-component-lifecycle-hooks
- node_modules\react-native\Libraries\ReactNative\YellowBox.js:82:15 in warn
- node_modules\react-native\Libraries\Renderer\ReactNativeRenderer-
dev.js:5706:19 in printWarning
- ... 21 more stack frames from framework internals
14:30:06: Warning: componentWillReceiveProps is deprecated and will be
removed …Run Code Online (Sandbox Code Playgroud) 是否可以在Java中使用一个return语句将数字1到n递归相加?您将如何更改标准解决方案:
public static int sum(int n) {
if(n == 1) return n;
else return n + sum(n - 1);
}
Run Code Online (Sandbox Code Playgroud) 我有一个wordpress网站,在使用chrome的开发人员控制台中出现以下错误:
[Intervention] Unable to preventDefault inside passive event listener due to
target being treated as passive.
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我有一个JavaScript代码段,其中设置了4个侦听器:
function moveDown(){
const submenus = document.getElementsByClassName('sub-menu')
var navbar = document.getElementById("menu-1");
var sub = this.getElementsByTagName('ul')[0]
var rect = sub.getBoundingClientRect();
navbar.style.marginBottom = rect.height + "px"
}
function moveUp(event){
var navbar = document.getElementById("menu-1");
navbar.style.marginBottom = 0
}
(function(){
var takeAction = document.getElementsByClassName('takeAction')[0]
var aboutUs = document.getElementsByClassName('aboutUs')[0]
aboutUs.addEventListener('mouseover', moveDown,{passive: false})
takeAction.addEventListener('mouseover', moveDown,{passive: false})
aboutUs.addEventListener('mouseleave', function(event) {moveUp(event)},{passive: false})
takeAction.addEventListener('mouseleave', function(event) {moveUp(event)},{passive: false})
})()
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由于我已经{passive:false}在每个侦听器上进行设置,如何解决此问题?
我正在学习 CS50 课程,但在使用 application.py 时遇到问题。我在 Cloud 9 代码编辑器 (Ace) 中收到以下警告:
instance of SQLAlchemy has no column member
instance of SQLAlchemy has no integer member
instance of SQLAlchemy has no text member
instance of scoped_session has no add member
instance of scoped_session has no commit member
Class Registrants has no query member
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我在主目录中创建了一个文件 .pylintrc 并添加了以下两行:
ignored-modules=flask_sqlalchemy
ignored-classes=SQLObject,Registrant
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这消除了大部分错误,但我留下了:
instance of scoped_session has no add member
instance of scoped_session has no commit member
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这是导致问题的代码:
from flask import Flask, render_template, redirect, request, url_for …Run Code Online (Sandbox Code Playgroud) javascript ×3
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html ×1
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