cursor

Hide cursor in Chrome (and IE)

由 六眼飞鱼酱① 提交于 2019-12-31 12:19:08
问题 I have the following CSS that hides the mouse cursor for anything on the web page. It works perfectly in Firefox, but in IE and Chrome, it doesn't work. html { cursor: none; } In Chrome, I always see the mouse pointer. In IE, however, I see whatever cursor was last 'active' when it entered the screen. Presumably it's keeping the last selection instead of removing it. 回答1: This property cursor:none; isn't part of the standard See here w3c cursor CSS properties. You might want to look into

python操作mysql数据库

由 会有一股神秘感。 提交于 2019-12-31 11:44:48
Python 标准数据库接口为 Python DB-API，Python DB-API为开发人员提供了数据库应用编程接口。 Python 数据库接口支持非常多的数据库，你可以选择适合你项目的数据库： GadFly mSQL MySQL PostgreSQL Microsoft SQL Server 2000 Informix Interbase Oracle Sybase 你可以访问 Python数据库接口及API 查看详细的支持数据库列表。 不同的数据库你需要下载不同的DB API模块，例如你需要访问Oracle数据库和Mysql数据，你需要下载Oracle和MySQL数据库模块。 DB-API 是一个规范. 它定义了一系列必须的对象和数据库存取方式, 以便为各种各样的底层数据库系统和多种多样的数据库接口程序提供一致的访问接口 。 Python的DB-API，为大多数的数据库实现了接口，使用它连接各数据库后，就可以用相同的方式操作各数据库。 Python DB-API使用流程： 引入 API 模块。 获取与数据库的连接。 执行SQL语句和存储过程。 关闭数据库连接。 什么是MySQLdb? MySQLdb 是用于Python链接Mysql数据库的接口，它实现了 Python 数据库 API 规范 V2.0，基于 MySQL C API 上建立的。 如何安装MySQLdb?

使用Python对MySQL数据库操作

由 Deadly 提交于 2019-12-31 11:43:12
本文介绍Python3使用PyMySQL连接数据库，并实现简单的增删改查。 什么是PyMySQL？ PyMySQL是Python3.x版本中用于连接MySQL服务器的一个库，Python2.x中则使用mysqldb。 PyMySQL安装 在使用PyMySQL之前，我们需要确保PyMySQL已经安装。 PyMySQL下载地址： https://github.com/PyMySQL/PyMySQL 。 如果还未安装，我们可以使用以下命令安装最新版的PyMySQL： $ pip install PyMySQL 如果你的系统不支持pip命令，可以使用以下方式安装： 1、使用git命令下载安装包安装（你也可以手动下载）： $ git clone https://github.com/PyMySQL/PyMySQL $ cd PyMySQL $ python3 setup.py install 2、如果需要制定版本号，可以使用curl命令来安装： $ # X.X 为PyMySQL 的版本号 $ curl -L https://github.com/PyMySQL/PyMySQL/tarball/pymysql-X.X | tar xz $ cd PyMySQL* $ python3 setup.py install 注意： 请确保您有root权限来安装上述模块。 3、数据库连接 连接数据库前

how to change the cursor color on emacs

由 大兔子大兔子 提交于 2019-12-31 10:43:08
问题 I made some changes in Emacs's colors and the only thing wrong now is the cursor that is black on black background and I will have to change that. What do I do? 回答1: If you are running a recent version of emacs you can use: ; Set cursor color to white (set-cursor-color "#ffffff") Instead of #ffffff you can use any color you like. For a list of hex code google Says: http://www.tayloredmktg.com/rgb/ Maybe you like this one... the following code changes the cursor color on each blink . Just eval

Cursor wrapping/unwrapping in ContentProvider

由 人走茶凉 提交于 2019-12-31 10:22:13
问题 I'm creating ContentProvider which is a proxy of another ContentProvider (for security issues and to give access to part of functionality of full app). public class GFContactsProvider extends ContactsProvider implements DatabaseConstants { private Context mContext; private ContentResolver mContentResolver; @Override public boolean onCreate() { mContext = getContext(); mContentResolver = mContext.getContentResolver(); } @Override public Cursor query(Uri uri, String[] projection, String

Cursor wrapping/unwrapping in ContentProvider

由 时光总嘲笑我的痴心妄想 提交于 2019-12-31 10:22:08
问题 I'm creating ContentProvider which is a proxy of another ContentProvider (for security issues and to give access to part of functionality of full app). public class GFContactsProvider extends ContactsProvider implements DatabaseConstants { private Context mContext; private ContentResolver mContentResolver; @Override public boolean onCreate() { mContext = getContext(); mContentResolver = mContext.getContentResolver(); } @Override public Cursor query(Uri uri, String[] projection, String

Make the divider of an NSSplitView undraggable and don't show the dragging cursor

由 ≡放荡痞女 提交于 2019-12-31 09:45:06
问题 I have an NSSplitView ( NO UISplitView(Controller)!! ) with three subviews. Now, for the last divider (index 1 ), I want the divider to not show the dragging cursor (two arrows pointing out of eachother). I have this to stop the dragging, but the cursor is still showing up: - (CGFloat)splitView:(NSSplitView *)splitView constrainSplitPosition:(CGFloat)proposedPosition ofSubviewAt:(NSInteger)dividerIndex { if (dividerIndex == 1) { return [splitView frame].size.width - 161; } } Note that I only

Make the divider of an NSSplitView undraggable and don't show the dragging cursor

由 六眼飞鱼酱① 提交于 2019-12-31 09:44:27
问题 I have an NSSplitView ( NO UISplitView(Controller)!! ) with three subviews. Now, for the last divider (index 1 ), I want the divider to not show the dragging cursor (two arrows pointing out of eachother). I have this to stop the dragging, but the cursor is still showing up: - (CGFloat)splitView:(NSSplitView *)splitView constrainSplitPosition:(CGFloat)proposedPosition ofSubviewAt:(NSInteger)dividerIndex { if (dividerIndex == 1) { return [splitView frame].size.width - 161; } } Note that I only

Volley or Service with cursor loader

由 只谈情不闲聊 提交于 2019-12-31 09:03:37
问题 I almost always use a Service when I download data from a web service. I store the result in a database and displays the result in my view using a cursor loader. But after Google released the network library Volley I have become a bit confused. The volley library uses async tasks instead of a Service and it doesn't use cursors. I thought that I was supposed to avoid async task and store my data in a database so that I could handle orientation changes properly - without loosing data and having

Merging data in a single SQL table without a Cursor

由 此生再无相见时 提交于 2019-12-31 08:48:10
问题 I have a table with an ID column and another column with a number. One ID can have multiple numbers. For example ID | Number 1 | 25 1 | 26 1 | 30 1 | 24 2 | 4 2 | 8 2 | 5 Now based of this data, in a new table, I want to have this ID | Low | High 1 | 24 | 26 1 | 30 | 30 2 | 4 | 5 2 | 8 | 8 As you can see, I want to merge any data where the numbers are consecutive, like 24, 25, 26. So now the low was 24, the high was 26, and then 30 is still a separate range. I am dealing with large amounts of
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