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Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...信/拨打电话，我们创建了SendMessageDirect和MakePhoneCallDirect模块，执行旧的需要额外权限的行为。我们选择让现有的SendMessage和MakePhoneCall模块通过Intents启动默认应用程序，这是Google政策推荐的做法，对大多数人应该有效。
对于接...
CSS background opacity with rgba not working in IE 8
...same start and end color ( alpha channel is the first pair in the value of HEX )
background: rgba(255, 255, 255, 0.3); /* browsers */
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#4cffffff', endColorstr='#4cffffff'); /* IE */
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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...Java平台的基础架构，继续翻跳过AOP和IoC之后迎来第一个模块“2.2.1”叫CoreContainer（包括spring-core、spring-beans、spring-context、spring-context-support模块）；第三部分的第一个章节（7章）叫TheIoCcontainer。所有IoCContainer是任何一个spring模...
Why are flag enums usually defined with hexadecimal values
A lot of times I see flag enum declarations that use hexadecimal values. For example:
6 Answers
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What is a regular expression for a MAC Address?
... printing MAC-48 addresses in
human-friendly form is six groups of
two hexadecimal digits, separated by
hyphens - or colons :.
So:
^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$
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Hash function that produces short hashes?
...ort hashlib
>>> hash = hashlib.sha1("my message".encode("UTF-8")).hexdigest()
>>> hash
'104ab42f1193c336aa2cf08a2c946d5c6fd0fcdb'
>>> hash[:10]
'104ab42f11'
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How to change the output color of echo in Linux
... # Cyan
On_IWhite='\033[0;107m' # White
the escape character in bash, hex and octal respectively:
| | bash | hex | octal | NOTE |
|-------+-------+--------+---------+------------------------------|
| start | \e | \x1b | \033 | ...
jQuery Data vs Attr?
...s was a contrived example. For storing color values, I used to use numeric hex notation (i.e. 0xABC123), but it's worth noting that hex was parsed incorrectly in jQuery versions before 1.7.2, and is no longer parsed into a Number as of jQuery 1.8 rc 1.
jQuery 1.8 rc 1 changed the behavior of auto-c...
Regular expression for a hexadecimal number?
How do I create a regular expression that detects hexadecimal numbers in a text?
11 Answers
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Python: How to create a unique file name?
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I think uuid.uuid4().hex would be a better choice, see detail here.
– Grey Li
Jul 9 '17 at 1:55
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