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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
... 发布日期：2020年11月28日
兼容性：Kodular、App Inventor 2
权限要求：无特殊权限要求
致谢
特别感谢以下开发者对扩展开发的支持：
Mohamed_Tamer - 技术指导
ADDYLIN - 开发支持
版权信息
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Eclipse Kepler for OS X Mavericks request Java SE 6
... answered Nov 3 '13 at 0:08
Kåre JonssonKåre Jonsson
3122 bronze badges
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What is the most accurate way to retrieve a user's correct IP address in PHP?
I know there are a plethora of $_SERVER variables headers available for IP address retrieval. I was wondering if there is a general consensus as to how to most accurately retrieve a user's real IP address (well knowing no method is perfect) using said variables?
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Getting visitors country from their IP
I want to get visitors country via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... )
2...
How to convert UTF-8 byte[] to string?
... answered Oct 16 '14 at 1:04
Erçin DedeoğluErçin Dedeoğlu
3,20944 gold badges3434 silver badges5656 bronze badges
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APT command line interface-like yes/no input?
...t instead of a bool is a mystery to me though.
– François Leblanc
Jan 19 '18 at 13:38
@FrançoisLeblanc as to Why it ...
Pointer to pointer clarification
...an address, it returns the object at that memory address. So when you do *ipp = ip2, what you are doing is *ipp get the object at the address held in ipp which is ip1 and then assign to ip1 the value stored in ip2, which is the address of j.
Simply
& --> Address of
* --> Value at
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What does “while True” mean in Python?
... answered Sep 20 '10 at 19:08
Håvard SHåvard S
20.4k55 gold badges5555 silver badges6767 bronze badges
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ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
...虑：某些操作（如旋转、缩放）可能需要较长时间
存储权限：保存图像需要相应的存储权限
路径格式：使用绝对路径确保文件正确保存
图像格式：支持常见的图像格式（JPEG、PNG等）
撤销功能：只能撤销 ApplyGrayscaleAndFade ...
How to calculate the number of occurrence of a given character in each row of a column of strings?
I have a data.frame in which certain variables contain a text string. I wish to count the number of occurrences of a given character in each individual string.
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