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App Inventor 2 数学代码块 · App Inventor 2 中文网
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App Inventor 2 数学代码块
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Download File to server from URL
...assing a stream-handle as the $data parameter:
file_put_contents("Tmpfile.zip", fopen("http://someurl/file.zip", 'r'));
From the manual:
If data [that is the second argument] is a stream resource, the remaining buffer of that stream will be copied to the specified file. This is similar with u...
How to re-sign the ipa file?
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CERTIFICATE="Name of certificate: To sign with" # must be in keychain
# unzip the ipa
unzip -q "$IPA"
# remove the signature
rm -rf Payload/*.app/_CodeSignature
# replace the provision
cp "$PROVISION" Payload/*.app/embedded.mobileprovision
# sign with the new certificate (--resource-rules has been ...
How can I see the size of a GitHub repository before cloning it?
...d then check the in the same place.
Somewhat hacky: use the download as a zip file option, read the file size indicated and then cancel it.
I do not remember if downloading as a zip ever worked, but in any case, doing so now only downloads the currently selected branch with no history.
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Apple Pay入华遇阻 只因BAT太受欢迎？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...可以一家独大的关键所在。但随着O2O消费模式的普及和扫码支付等新兴支付方式的兴起，受到冲击的传统商户正面临O2O转型的困苦，因此传统商户的核心需求已经悄然改变，总的来看主要有以下几个方面。
1、需要获取更多的消...
Shuffle two list at once with same order
... can do it as:
import random
a = ['a', 'b', 'c']
b = [1, 2, 3]
c = list(zip(a, b))
random.shuffle(c)
a, b = zip(*c)
print a
print b
[OUTPUT]
['a', 'c', 'b']
[1, 3, 2]
Of course, this was an example with simpler lists, but the adaptation will be the same for your case.
Hope it helps. Good L...
Extract filename and extension in Bash
...the file type. Consider if you had a game called dinosaurs.in.tar and you gzipped it to dinosaurs.in.tar.gz :)
– porges
Jun 13 '09 at 9:11
11
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How do you extract a column from a multi-dimensional array?
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check it out!
a = [[1, 2], [2, 3], [3, 4]]
a2 = zip(*a)
a2[0]
it is the same thing as above except somehow it is neater
the zip does the work but requires single arrays as arguments, the *a syntax unpacks the multidimensional array into single array arguments
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设置用户默认权限 Umask命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...趣的请自查。
为了稍后演示的方便性，先在Windows上用7-zip创建两个文件：
foo.zip（包括：目录foo_dir，文件foo_file）
bar.tar（包括：目录bar_dir，文件bar_file）
当然，你可以不用Windows，我之所以这样做，只是为了稍后抖个包袱...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...vice rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查找原因：
shell> cat /etc/sysconfig/rsyslog
# Options for rsyslogd
# Syslogd options are deprecated since rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
# ...