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App Inventor 2 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录...
...径中，则只需输入目录名称即可。
GetCurrentDirectory()
获取当前远程目录。
ListDirectory(dir_path)
获取指定目录下的列表（文件或子目录的列表）。
CreateDirectory(dir_path)
在指定路径中创建目录。例如：/public_html/my_directory。...
App Inventor 2 文本代码块 · App Inventor 2 中文网
... 否则，返回 假。
通过选择是否包含代码块中下拉框来获取此代码块：
是否包含（所有）
如果 子串列表 中的所有子串都出现在文本中，则返回 真， 否则，返回 假。
通过选择是否包含代码块中下拉框来获取此代码块：
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三个退出程序消息：WM_CLOSE、WM_DESTROY、WM_QUIT区别 - C/C++ - 清泛网 -...
...三个消息的区别
WM_CLOSE:
在系统菜单里选择了“关闭”或者点击了窗口右上角的“X”按钮，你的窗口过程就会收到WM_CLOSE。DefWindowProc对 WM_CLOSE的处理是调用DestroyWindow。当然，你可以不让DefWindowProc处理，而是自己处理，例如询...
Closing JDBC Connections in Pool
...
Thats what it is doing (initialize once), isnt it? ds is an instance variable, and if (ds == null) ... is the initialization part.
– Manidip Sengupta
Feb 8 '11 at 21:22
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Simplest way to detect a mobile device in PHP
...|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(2...
Downcasting shared_ptr to shared_ptr?
...cast or dynamic_cast, and you wish you could have a little bit of both worlds. It is well known that dynamic_cast has a runtime overhead, but it is safer, whereas static_cast has no overhead at all, but it may fail silently. How nice it would be if you could use shared_dynamic_cast in debug builds, ...
What is the best practice for “Copy Local” and with project references?
...t it does not include transitively
referenced projects. Since this leads to enormous memory
consumption and is not needed since we use the single
output directory strategy.
============================================================
GetCopyToOutputDirectoryItems
...
今年全球重大数据泄露事件盘点 - 资讯 - 清泛网 - 专注C/C++及内核技术
今年全球重大数据泄露事件盘点今天大麦网数据泄露的消息把不少人吓了一跳。尽管大麦网随即证实是在2014年发生的攻击，但还是让人余悸未消。还记得前几天“偷情地图”网站数据泄露造成的用户自杀的事件吧，在这个大数...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...化视图问题我们采用Oracle的物化视图增量刷新机制定时将数据库A上的某个表的数据同步到另一个数据库B上。我们常用的最简单的实现步骤是这样。首先在数...我们采用Oracle的物化视图增量刷新机制定时将数据库A上的某个表的数...
Purpose of ESI & EDI registers?
...ning. What you do is you set up SI and/or DI to point at one or both operands, perhaps put a count in CX and then let 'er rip. These are operations that work on a bunch of bytes at a time, and they kind of put the CPU in automatic. Because you're not explicitly coding loops, they do their thing more...