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App Inventor 2 TaifunBattery 拓展：电池管理器，获取设备电量 · App Inventor 2 中文网
...池管理器扩展。所需权限：无
demo效果图：
.aix 拓展下载：
com.puravidaapps.TaifunBattery3.aix
demo程序下载：
battery3.aia
版本V3加入了状态的下拉帮助代码块：
属性
返回当前健康常量。
可能的值有：冷(cold)、死(dead)、...
In-place edits with sed on OS X
...ed-up file. Extending your example:
sed -i.bu 's/oldword/newword/' file1.txt
Will give you two files: one with the name file1.txt that contains the substitution, and one with the name file1.txt.bu that has the original content.
Mildly dangerous
If you want to destructively overwrite the origi...
2016电商“死亡”名单（上半年） - 资讯 - 清泛网 - 专注IT技能提升
...家专注于95后的青少年个性化电商平台，根据兴趣标签和推荐算法为年轻用户提供高品质高逼格商品。选品主打95后喜欢的零食、饰品、书包文具、二次元周边等商品。
反思：神奇百货CEO王凯歆在《神奇百货成立的一年里，我...
How to find/identify large commits in git history?
...to a text file:
git rev-list --objects --all | sort -k 2 > allfileshas.txt
Step 2 Sort the blobs from biggest to smallest and write results to text file:
git gc && git verify-pack -v .git/objects/pack/pack-*.idx | egrep "^\w+ blob\W+[0-9]+ [0-9]+ [0-9]+$" | sort -k 3 -n -r > bigobj...
How to export and import environment variables in windows?
...paths you set manually. BEWARE! On a command line: echo path > mybackup.txt or set > mybackup.txt for the whole backup on ALL vars/paths and ALL sys vars/paths.
– ejbytes
Aug 6 '16 at 10:08
...
What encoding/code page is cmd.exe using?
...OutputStream("uc-test-"
+ encoding + (writeBom ? "-bom.txt" : "-nobom.txt"));
out.write(bytes);
out.close();
}
}
}
}
The output in the default codepage? Total garbage!
Z:\andrew\projects\sx\1259084>chcp
Active code pag...
Git: can't undo local changes (error: path … is unmerged)
...e, then checkout, to revert local changes.
Try this:
$ git reset foo/bar.txt
$ git checkout foo/bar.txt
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How to create a file in a directory in java?
If I want to create a file in C:/a/b/test.txt , can I do something like:
11 Answers
1...
Easiest way to read from and write to files
...iting a text file:
using(StreamWriter writetext = new StreamWriter("write.txt"))
{
writetext.WriteLine("writing in text file");
}
Reading a text file:
using(StreamReader readtext = new StreamReader("readme.txt"))
{
string readText = readtext.ReadLine();
}
Notes:
You can use readtext.D...
What Automatic Resource Management alternatives exist for Scala?
... lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.readLine()).map(_ -> ())).toList
}
or using Using.resource avoid Try
val lines: Seq[String] =
Using.resource(new BufferedReader(new FileReader("fi...