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StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
... 使用示例
基本文本处理
当 Screen1.Initialize 时
设置 StringUtils1.Text 为 "Hello World"
当 Button1.Click 时
// 取左边5个字符
设置 Label1.Text 为 调用 StringUtils1.Left(5)
// 结果: "Hello"
// 取右边5个字符
设置 ...
jQuery UI DatePicker to show month year only
...s"></script>
<link rel="stylesheet" type="text/css" media="screen" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css">
<script type="text/javascript">
$(function() {
$('.date-picker').datepicker( {
changeM...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...app.ReleaseDispatch();
m_app=NULL;
}
//关闭打开的Excel 文件,默认情况不保存文件
void CExcelOp::CloseExcelFile(BOOL if_save)
{
//如果已经打开，关闭文件
if (open_excel_file_.IsEmpty() == FALSE)
{
//如果保存,交给用户控制,让用户自己存，如果...
Encoding Javascript Object to Json string
....user_id = 54875;
new_tweets.k.data = { };
new_tweets.k.data.in_reply_to_screen_name = 'other_user';
new_tweets.k.data.text = 'tweet text';
// Will create the JSON string you're looking for.
var json = JSON.stringify(new_tweets);
You can also do it all at once:
var new_tweets = {
k: {
tw...
Generate .pem file used to set up Apple Push Notifications
...onnect to Apple Push Server on your behalf.
(Updated version with updated screen shots Here)
Step 1: Login to iOS Provisioning Portal, click "Certificates" on the left navigation bar. Then, click "+" button.
Step 2: Select Apple Push Notification service SSL (Production) option under Distributi...
Is an HTTPS query string secure?
...meone might have hacked your computer and installed a keyboard logger or a screen scraper (and a lot of Trojan Horse type viruses do). Since the password is visible directly on the screen (as opposed to "*" in a password dialog), this is another security hole.
Conclusion: When it comes to security,...
How can I record a Video in my Android App.?
...O_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
recorder = new MediaRecorder();
initRecorder();
setCont...
position: fixed doesn't work on iPad and iPhone
...:fixed; on the grounds that fixed elements could get in the way on a small screen.
The Quirksmode.org site has a very good blog post that explains the problem: http://www.quirksmode.org/blog/archives/2010/12/the_fifth_posit.html
Also see this page for a compatibility chart showing which mobile bro...
Login failed for user 'DOMAIN\MACHINENAME$'
...ick on NT AUTHORITY\NETWORK SERVICE and select Properties
In newly opened screen of Login Properties, go to the “User Mapping” tab. Then, on the “User Mapping” tab, select the desired database – especially the database for which this error message is displayed. On the lower screen, check ...
How to dynamically create CSS class in JavaScript and apply?
... if (mediaType === 'string') {
if (media === '' || (media.indexOf('screen') !== -1)) {
styleSheet = document.styleSheets[i];
}
}
else if (mediaType=='object') {
if (media.mediaText === '' || (media.mediaText.indexOf('screen') !== -1)) {
styleSh...