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App Inventor 2 试验组件 · App Inventor 2 中文网
...)，编译为apk则不受限制安装后可正常运行。
demo程序下载：
chatgpt.aia
属性
ApiKey
ChatGPT 的 ApiKey，由用户提供。如果提供，我们将使用它来代替聊天代理服务中的 API 密钥。
注意：我们不将其作为属性在“界面设计”...
What's the opposite of 'make install', i.e. how do you uninstall a library in Linux?
... run this command which I have from another answer:
cat install_manifest.txt | xargs echo rm | sh
If you have sudo make install you will need to add a sudo to your uninstall:
cat install_manifest.txt | xargs echo sudo rm | sh
...
Best practice for Django project working directory structure
...rowser ones)
tmp/ # excluded from git
setup.py
requirements.txt
requirements_dev.txt
pytest.ini
...
Settings
The main settings are production ones. Other files (eg. staging.py,
development.py) simply import everything from production.py and override only necessary variables.
For each...
How to create a zip file in Java
...ipOutputStream(new FileOutputStream(f));
ZipEntry e = new ZipEntry("mytext.txt");
out.putNextEntry(e);
byte[] data = sb.toString().getBytes();
out.write(data, 0, data.length);
out.closeEntry();
out.close();
This will create a zip in the root of D: named test.zip which will contain one single fil...
Extract a number from a string (JavaScript)
...
You should try the following:
var txt = "#div-name-1234-characteristic:561613213213";
var numb = txt.match(/\d/g);
numb = numb.join("");
alert (numb);
result
1234561613213213
s...
Execute command on all files in a directory
... "$file" >> results.out
done
Example
el@defiant ~/foo $ touch foo.txt bar.txt baz.txt
el@defiant ~/foo $ for i in *.txt; do echo "hello $i"; done
hello bar.txt
hello baz.txt
hello foo.txt
share
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...
How to find files that match a wildcard string in Java?
...am = Files.newDirectoryStream(
Paths.get(".."), "Test?/sample*.txt")) {
dirStream.forEach(path -> System.out.println(path));
}
or
PathMatcher pathMatcher = FileSystems.getDefault()
.getPathMatcher("regex:Test./sample\\w+\\.txt");
try (DirectoryStream<...
Remove blank lines with grep
...
Try the following:
grep -v -e '^$' foo.txt
The -e option allows regex patterns for matching.
The single quotes around ^$ makes it work for Cshell. Other shells will be happy with either single or double quotes.
UPDATE: This works for me for a file with blank ...
How can I read a text file in Android?
...t file in the application folder. Where should I put this text file (mani.txt) in order to read it correctly?
7 Answers
...
File name? Path name? Base name? Naming standard for pieces of a path
...parate to the dot. You need to handle file names of "foo", "foo." and "foo.txt" (and even "foo.txt.bak".)
– Oddthinking
Feb 11 '10 at 21:22
2
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