大约有 26,000 项符合查询结果(耗时:0.0218秒) [XML]

https://bbs.tsingfun.com/thread-3066-1-1.html 

App Inventor 2 蓝牙发送十六进制字节方案:文本转Hex字节详解 - App应用开...

...输入校验:字符串长度必须是偶数,只包含 0-9、A-F、a-f大小写兼容:A-F 和 a-f 都要支持空格处理:用户可能输入 "AB CD",发送前需去除空格字节范围:每对字符解析后值范围是 0-255,正好一个字节 验证示例输入字符串解...
https://www.fun123.cn/referenc... 

App Inventor 2 软件著作权(软著)申请指南 · App Inventor 2 中文网

...是项目中每个屏幕和组件的事件和逻辑,类似于传统编程语言中的代码,但它是以图形化方式表示的。 转换和生成 APK:在 App Inventor 中,.yail 文件是从图形化界面转换过来的,最终的 APK 文件会通过这些 .yail 文件生成应用的行...
https://stackoverflow.com/ques... 

Linux: is there a read or recv from socket with timeout?

...fd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv); // WINDOWS DWORD timeout = timeout_in_seconds * 1000; setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout); // MAC OS X (identical to Linux) struct timeval tv; tv.tv_sec = timeout_in_seconds; tv.tv_use...
https://www.tsingfun.com/it/tech/1999.html 

java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

java中的缓存技术该如何实现1缓存为什么要存在?2缓存可以存在于什么地方?3缓存有哪些属性?4缓存介质?搞清楚这4个问题,那么我们就可以随意的通过应用的场景来判断使用何...1、缓存为什么要存在? 2、缓存可以存在于什么地方...
https://www.tsingfun.com/it/cpp/2118.html 

MFC Dialog中嵌入View、动态创建View的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...没有的话可以放在构造函数中,然后在OnPaint()函数中改变大小并显示视图。 2、OnInitialUpdate:使用MDI框架创建视图时会自动被框架调用,这里的View是自行创建的需要手动调一下。代码如下,亲测有效: //.h CView *m_pDemoView; /...
https://stackoverflow.com/ques... 

What is a bus error?

...er math on. Look carefully at the code above. The compiler has carefully dword aligned your pointer for data- and then you screw everything up on the compiler by offsetting the reference by TWO and typecasting to a very much needing to be dword aligned access on what's going to be a non-dword boun...
https://www.tsingfun.com/it/cp... 

__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术

...有重名的宏定义。 aligned (alignment) 该属性设定一个指定大小的对齐格式(以字节为单位),例如: struct S { short f[3]; } __attribute__ ((aligned (8))); typedef int more_aligned_int __attribute__ ((aligned (8))); 该声明将强制编译器确保(尽它所...
https://www.tsingfun.com/it/cpp/1608.html 

菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术

...u);//关联到窗口中 Menu.Detach(); popMenu.Detach(); 更改菜单项大小(宽高),设置菜单文本字体大小 由于CMenu类里并没有提供设置菜单项大小以及字体大小的函数,所以我们如果要实现上述功能的话,只能采取自绘的方法。 如果对...
https://stackoverflow.com/ques... 

#pragma pack effect

...nts (e.g. members of classes and structs) are typically aligned on WORD or DWORD boundaries for current generation processors in order to improve access times. Retrieving a DWORD at an address which isn't divisible by 4 requires at least one extra CPU cycle on a 32 bit processor. So, if you have e.g...
https://stackoverflow.com/ques... 

Code Golf: Collatz Conjecture

...NUMBER ; section .text global main extern printf extern atoi main: cmp dword [esp+0x04], 2 jne .usage mov ebx, [esp+0x08] push dword [ebx+0x04] call atoi add esp, 4 cmp eax, 0 je .usage mov ebx, eax push eax push msg .loop: mov [esp+0x04], ebx call printf test ebx,...