position

地图几乎是很多项目中不可或缺的一部分，这里介绍下在vue+element中vue-map的使用。 1、安装 npm install vue-amap --save 2、配置 全局配置，在 main.js 中配置，代码如下： import VueAMap from 'vue-amap'; Vue.use(VueAMap); //初始化 VueAMap.initAMapApiLoader({ key: 'your key', plugin: ['AMap.Autocomplete', 'AMap.PlaceSearch', 'AMap.Scale', 'AMap.OverView', 'AMap.ToolBar', 'AMap.MapType', 'AMap.PolyEditor', 'AMap.CircleEditor'],//依赖配置，根据自己的需求引入 // 默认高德 sdk 版本为 1.4.4 v: '1.4.4' }); 3、使用 3-1、只显示地图及中心点定位 <template> <div class="content"> <div class="amap-wrapper"> <el-amap class="amap-box" :zoom="zoom" :center="center" :mapStyle="mapStyle"></el-amap> </div> <

(图一) 页面预览 ：当前位置（红色 图标处） （图二）页面预览： 文字设置 + 弹框设置 (图三) 搜索插件 + toolBar 插件 (图四) 时间轴插件 < template > < div class = "amap-page-container" > < ! -- 搜索框 -- > < el - amap - search - box class = "search-box" : search - option = "searchOption" : on - search - result = "onSearchResult" > < / el - amap - search - box > < el - amap ref = "map" vid = "amapDemo" : center = "center" : map - manager = "amapManager" : zoom = "zoom" : plugin = "plugin" : events = "events" class = "amap-demo" > < ! -- 在地图上标记点 -- > < el - amap - marker v - for = "(marker,index) in markers" : key = "index" : position = "marker" > < /

<div class="taiji"></div> .taiji { width: 140px; height: 280px; border-radius: 100%; /* background-color: red; */ border: 2px solid black; border-left: 140px solid black; position: relative; } .taiji::before { content: ""; position: absolute; right: 50%; top: 0; width: 40px; height: 40px; border-radius: 100%; background: black; border: 50px solid #ffffff; } .taiji::after { content: ""; position: absolute; right: 50%; bottom: 0; width: 40px; height: 40px; border-radius: 100%; background: #fff; border: 50px solid black; } 1. .taiji { width: 140px; height: 280px; border-radius: 100%; /*

目前只支持5种语言，分别是 English 、 French 、 German 、 Italian 和 Spanish. 系统要求为android 1.6以上 直接上代码啦： [java] public class TTSActivity extends Activity implements TextToSpeech.OnInitListener { private static final String TAG = "TextToSpeechDemo" ; private TextToSpeech mTts;//首先来个对象，至于TextToSpeech类，按F3可以查看 [java] //TODO complete javadoc + add links to constants public class TextToSpeech { /** * Denotes a successful operation. */ public static final int SUCCESS = 0 ; /** * Denotes a generic operation failure. */ public static final int ERROR = - 1 ; 以上只包含部分代码，其他的就省略了。 [java] mTts = new TextToSpeech( this ,

实现界面： 事件：当点击时可以出现点击事件 实现思路，图片下面有一个文本框，又要以网格的形式实现界面， 那么就需要使用girdview完成网格布局， 同时使用一个打气筒将一个layout转成一个view， xml： main <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example

一、连接MySQL 格式： mysql -h 主机地址 -u 用户名 -p 用户密码 1、例1：连接到本机上的MYSQL。 首先在打开DOS窗口，然后进入目录 mysql bin，再键入命令mysql -uroot -p，回车后提示你输密码，如果刚安装好MYSQL，超级用户root是没有密码的，故直接回车即可进入到MYSQL中了，MYSQL的提示符是： mysql>。 2、例2：连接到远程主机上的MYSQL。假设远程主机的IP为：110.110.110.110，用户名为root,密码为abcd123。则键入以下命令： mysql -h 110.110.110.110 -uroot -p abcd123 （注:u与root可以不用加空格，其它也一样） 3、退出MYSQL命令： exit （回车）。 二、修改密码 格式：mysqladmin -u用户名 -p旧密码 password 新密码 1、例1：给root加个密码ab12。首先在DOS下进入目录mysql bin，然后键入以下命令： mysqladmin -uroot -password ab12 注：因为开始时root没有密码，所以-p旧密码一项就可以省略了。 2、例2：再将root的密码改为djg345。 mysqladmin -uroot -pab12 password djg345 三、增加新用户。 （注意：和上面不同

I fixed the header section of a website, but the first div of the page appears behind the header; instead of starting from the end of the header. When you apply position: fixed or position: absolute the element is being removed from the document flow, so the elements that come after treat it as a non-existent. That's why your div jumps up. To fix that apply a margin-top that equals to your header height - http://jsfiddle.net/2xjES/ 来源： https://stackoverflow.com/questions/11126482/content-appearing-behind-fixed-header

i have a android listview. i want to change listview item background when i click one listview item. and then previous selected item must go back to default background. this means only one item has to be selected. i have searched it for a long time. i can change background of selected item using onItemClick() but i can't change previous selected item. for example, if i select second item, it was changed. and then i select third item. oh my god! it is changed too! what can i do for this. how can i get the previous position? here is my android code. private class ListViewItemClickListener

is it possible to get the mouse direction (Left, Right, Up, Down) based on mouse last position and current position? I have written the code to calculate the angle between two vectors but I am not sure if it is right. Can someone please point me to the right direction? public enum Direction { Left = 0, Right = 1, Down = 2, Up = 3 } private int lastX; private int lastY; private Direction direction; private void Form1_MouseDown(object sender, MouseEventArgs e) { lastX = e.X; lastY = e.Y; } private void Form1_MouseMove(object sender, MouseEventArgs e) { double angle = GetAngleBetweenVectors(lastX