大约有 7,000 项符合查询结果（耗时：0.0204秒） [XML]
IRXmitter红外发射器扩展 · App Inventor 2 中文网
...
我的电视遥控器总是藏得很隐蔽，但是要找到我的智能手机就容易多了。如果需要，我可以呼叫它，它会发出声音应答。可惜我的电视（Metz设备）没有可以发送合适红外代码的应用程序 :-(。有了这个MIT App Inventor扩展，我...
Rails 3.1 and Image Assets
...
when referencing images in CSS or in an IMG tag, use image-name.jpg
while the image is really located under ./assets/images/image-name.jpg
share
|
improve this an...
Chrome Extension how to send data from content script to popup.html
...info.
Directory structure:
root-directory/
|_____img
|_____icon19.png
|_____icon38.png
|_____manifest.json
|_____background.js
|_____content.js
|_____popup.js
|_____popup.html
manif...
How to set the thumbnail image on HTML5 video?
...eems to be an extra image being shown there.
You can try using this
<img src="/images/image_of_video.png" alt="image" />
/* write your code for the video here */
Now using jQuery play the video and hide the image as
$('img').click(function () {
$(this).hide();
// use the parameters t...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...申请动态内存，文件描述符等，执行完是否有正确释放？指针等操作是否规范？
性能如何
是否有一些执行耗时的操作，I/O，网络文件下载，文件解析等，是否可以进行优化？是否会影响到功能体验？使用异步线程执行会更...
angularjs: ng-src equivalent for background-image:url(…)
...directive that does exactly what you want. For example
app.directive('backImg', function(){
return function(scope, element, attrs){
var url = attrs.backImg;
element.css({
'background-image': 'url(' + url +')',
'background-size' : 'cover'
});
}...
LEGO EV3 机器人按键控制 · App Inventor 2 中文网
...
开发平台：MIT App Inventor
目标设备：Android智能手机
通信协议：Bluetooth Classic
硬件要求：LEGO Mindstorms EV3
最小系统版本：Android 4.4+（蓝牙支持）
扩展建议
功能增强
传感器...
How to have jQuery restrict file types on upload?
...folder with different extension. as you can see here -> imageshack.us/a/img20/8451/switchzz.jpg
– bernte
May 24 '13 at 18:38
...
App Inventor 2 中文网 · 项目指南
...程，直接就能开发手机应用App 人工智能必备，建议10+开始学习 几乎最复杂的编程语言，运行效率最高 ...
UIButton won't go to Aspect Fit in iPhone
...tion, as in the following method:
- (UIImage *) getScaledImage:(UIImage *)img insideButton:(UIButton *)btn {
// Check which dimension (width or height) to pay respect to and
// calculate the scale factor
CGFloat imgRatio = img.size.width / img.size.height,
btnRatio = btn.f...