大约有 47,000 项符合查询结果(耗时:0.0455秒) [XML]

https://www.tsingfun.com/it/tech/751.html 

二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

.../qr_code.pdf 基础知识 首先,我们先说一下二维码一共有40个尺寸。官方叫版本Version。Version 1是21 x 21的矩阵,Version 2是 25 x 25的矩阵,Version 3是29的尺寸,每增加一个version,就会增加4的尺寸,公式是:(V-1)*4 + 21(V是版本号) 最...
https://stackoverflow.com/ques... 

How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?

... developer.android.com has nice example code for this: https://developer.android.com/guide/topics/providers/document-provider.html A condensed version to just extract the file name (assuming "this" is an Activity): public String getFi...
https://www.tsingfun.com/it/cpp/653.html 

VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术

VS2005混合编译ARM汇编代码公司HW team有人希望可以给他们写一个在WinCE上,单独读写DDR的工具,以方便他们量测Memory读写时的硬件信号。在开发过程中,发现简单的在...公司HW team有人希望可以给他们写一个在WinCE上,单独读写DDR的...
https://stackoverflow.com/ques... 

Create a folder inside documents folder in iOS apps

...UserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/MyFolder"]; if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) [[NSFileManager defaultManager] createDi...
https://bbs.tsingfun.com/thread-1442-1-1.html 

【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...

...: [hide][/hide] 资源地址:https://drive.google.com/drive/f ... 0BGKOaa?usp=sharing(如打不开可以直接在附件中下载) 数据在行动1:使用柱状图和饼图收集数据跟踪我的情绪这个渐进式的指南告诉你如何创建一个App来跟踪你一周或一...
https://stackoverflow.com/ques... 

Remove all occurrences of char from string

... not true anymore. It does not use regex anymore. – Nand Aug 17 at 16:12 add a comment  |  ...
https://www.tsingfun.com/it/cpp/2085.html 

MFC中ComboBox控件的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...IDC_COMBO_CF))->ResetContent();//消除现有所有内容 for(int i=1;i<=100;i++) { strTemp.Format("%d",i); ((CComboBox*)GetDlgItem(IDC_COMBO_CF))->AddString(strTemp); } 3,下拉的时候添加,如: CString strTemp; intiCount=((CComboBox*)GetDlgItem(IDC_COMBO_CF))->GetCount();//...
https://stackoverflow.com/ques... 

How does StartCoroutine / yield return pattern really work in Unity?

I understand the principle of coroutines. I know how to get the standard StartCoroutine / yield return pattern to work in C# in Unity, e.g. invoke a method returning IEnumerator via StartCoroutine and in that method do something, do yield return new WaitForSeconds(1); to wait a second, th...
https://www.tsingfun.com/it/tech/1599.html 

Apache两种工作模式区别及配置切换 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...务的两种工作模式详解: http://www.cnblogs.com/ghj1976/archive/2011/01/11/1932764.html prefork的工作原理及配置   如果不用“--with-mpm”显式指定某种MPM,prefork就是Unix平台上缺省的MPM。它所采用的预派生子进程方式也是Apache 1.3中采用的...
https://www.tsingfun.com/it/tech/857.html 

Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...域,请保证这个方法是static类型的,这样方法调用将快15%-20%。这是一个好的习惯,因为你可以从方法声明中得知调用无法改变这个对象的状态。 常量声明为Static Final 先看下面这种声明的方式 static int intVal = 42; static String strVal ...