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nsis安装、卸载时如何判断程序是否正在运行 并提示关闭？ - 脚本技术 - 清...
...------------------------
!include logiclib.nsh
FindProcDLL::FindProc "Test.exe"
StrCmp $R0 1 0 +2
messagebox::show MB_SETFOREGROUND|MB_ICONHAND|MB_DEFBUTTON3|MB_TOPMOST "${PRODUCT_NAME}" "" \
'检测到程序正在运行，是否...
如何获取控件的值？ - C++ UI - 清泛IT社区，为创新赋能！
最简单直观的：
CString str;
GetDlgItemText(IDC_EDIT_TEST, str);
int d=atoi(str.GetBuffer(0));
更优雅的：
.h：int m_editTest;
.cpp：
void CxxDlg::DoDataExchange(CDataExchange* pDX)
{
DDX_Text(pDX, IDC_EDIT_TEST, m_editTest);
}
这样就绑定了控件和一...
C++ SpinLock 自旋锁的代码实现（全网最简略的方式） - C/C++ - 清泛网 - ...
...:f_(ATOMIC_FLAG_INIT) {}
virtual ~SpinLock() {}
void lock() { while(f_.test_and_set(memory_order_acquire)); }
void unlock() { f_.clear(memory_order_release); }
};
2、有退避策略的自旋锁，尝试一定次数(65535)失败后让出线程调度权：
class SpinLockWithYield {
ato...
App Inventor 2 实现上传文件到服务器全方案总结 · App Inventor 2 中文网
...制流保存为图片
img = request.get_data()
with open("test.png", "wb") as f:
f.write(img)
return 0
# 后面的路径可以自己定义
api.add_resource(receive_pic,'/test')
if __name__ == '__main__':
app_port = 8081
app.run(host="0.0.0.0", po...
使用模拟器构建应用程序 · App Inventor 2 中文网
...ntor includes an emulator for the phone. The emulator lets you develop and test apps using a virtual phone instead of a real phone. Instead of connecting a phone to the USB port, just start the emulator program. When you click Connect to Phone in the Blocks Editor, your app will appear in the emulat...
App Inventor 2 AsciiConversion 拓展，ASCII编码与解码，Ascii码转换 · App Inventor 2 中文网
...
.aix 拓展下载：
AsciiConversion.aix
demo程序下载：
test_AsciiConversion.aia
此扩展允许用户将 Ascii 代码(列表)转换为相应的文本，也可以将指定的字符转换为相应的 Ascii 代码。
此扩展提供 3个 函数：
AsciiCode: 给出字符，返...
“当屏幕1.关闭其他屏幕时”这个事件是怎么触发的？ - App Inventor 2 中文...
...，如Screen1的事件代码如下：
当Screen1跳转到屏幕"test"时，屏幕"test"调用“关闭屏幕并返回值”方法后，上面的事件就会触发，代码如下：
事件触发后的测试结果，Screen1打印出了关闭前的屏幕名称及关闭时...
Interfaces — What's the point?
...o that your front end would be written once and (here's the important bit) tested, and you can then plug in further back end items as required:
interface ICreature
{
void Walk(int distance)
}
public class Troll : ICreature
public class Orc : ICreature
//etc
Front end is then:
void SpawnCr...
How do I get a human-readable file size in bytes abbreviation using .NET?
...
using Log to solve the problem....
static String BytesToString(long byteCount)
{
string[] suf = { "B", "KB", "MB", "GB", "TB", "PB", "EB" }; //Longs run out around EB
if (byteCount == 0)
return "0" + suf[0];
long bytes = Math.Abs(byteCount);
int place ...
Parsing JSON using Json.net
...""objects"" : [
{
""attributes"" : {
""OBJECT_NAME"" : ""test name"",
""OBJECT_TYPE"" : ""test type""
},
""position"" :
{
""x"" : 5,
""y"" : 7
}
}
]
}";
static void Main()
{
JavaScriptSerializer ser = new J...