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为什么会提示AppInventor2.exe 不是有效的 Win32 - App Inventor 2 离线版 ...
... 2025-04-15 18:35 编辑
电脑系统为64位win7，安装AppInventor2后运行，提示C:\AppInventor2\AppInventor2.exe 不是有效的 Win32 应用程序 这是为什么？
https://aka.ms/vs/16/release/vc_redist.x64.exe
装一个运行环境试试，如果还是运行不了，那就是...
Expanding a parent to the height of its children
...
If it's only on Webkit then it only 20% exist :P Cheers for the link, never seen this website before. Is it well maintained and updated? Do you swear by it?
– pilau
Apr 2 '13 at 21:46
...
ESP8285接入App Inventor 2深度调研：4种连接方案+是否需要开发拓展 - 创客...
...
3. 关键发现
Serial.java是唯一提及Arduino/ESP8266/ESP8285的运行时文件，使用Physicaloid库进行USB串口通信。但目前没有专门的IoT/ESP拓展组件。
三、4种连接方案详细分析
方案1：HTTP API方式(推荐首选)
原理：ESP8285上运行HTTP Ser...
Removing whitespace from strings in Java
... and st.replaceAll("\\s","") produce the same result.
The second regex is 20% faster than the first one, but as the number consecutive spaces increases, the first one performs better than the second one.
Assign the value to a variable, if not used directly:
st = st.replaceAll("\\s+","")
...
jQuery hasClass() - check for more than one class
...t ran this in jsperf for Chrome 21.0.1180 and the is() method is now about 20% faster. But the hasClass() seems more readable.
– Danyal Aytekin
Sep 27 '12 at 12:27
3
...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...se steps over percentage because it's more intuitive for me.
For example, 20% of a 200 blue value is much different than 20% of a 40 blue value.
Anyways, here's my modification, thanks for your original function.
function adjustBrightness(col, amt) {
var usePound = false;
if (col[0] == ...
How to convert numbers between hexadecimal and decimal
...ode that illustrates that idea. My performance tests showed that it can be 20%-40% faster than Convert.ToInt32(...):
class TableConvert
{
static sbyte[] unhex_table =
{ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-...
VS Addin插件配置、部署 - C/C++ - 清泛网 - 专注C/C++及内核技术
...置的路径是工程bin目录下dll的绝对路径，这样便于开发者调试。实际部署最好使用相对路径，然后把dll拷到Addins目录下。
工程目录下也有一个接口文件，里面的路径是相对路径，实际部署可以把这个文件和dll文件一起拷到VS...
VS2012警告未能加载包“Visual C++ package” - C/C++ - 清泛网 - 专注C/C++及内核技术
...
安装过程如图：
安装完后可以打开项目了，不过发现调试F5不能用了，是灰色的，重新启动下VS2012即可恢复正常。
VS2012 C++
c++ 写日志通用类，可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
... LOGGER_LEVEL_NAME[] = {"崩溃", "错误", "警告", "信息", "详细", "调试"};
static const char * const LOGGER_LEVEL_CODE[] = {"FATAL", "ERROR", "WARN ", "INFO ", "VERBOSE", "DEBUG"};
#define logging(nLevel, x, ...) \
Log(nLevel, __FUNCTION__, __LINE__, (x), __VA_ARGS__)
#define LOG...