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中文网（自研/维护）拓展 · App Inventor 2 中文网
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None
方法
Copy(text)
拷贝文本到剪贴板。
Paste()
从剪贴板粘贴内容并返回文本。
ECharts
Component for ECharts
属性
ShowAnimation
动画是否开启。
ShowValue
是...
What does collation mean?
...all letters to be different (say, if you store filenames in UNIX), you use UTF8_BIN collation:
SELECT 'A' COLLATE UTF8_BIN = 'a' COLLATE UTF8_BIN
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0
If you want to ignore case and diacritics differences (say, for a search engine), you use UTF8_GENERAL_CI collation:
SELECT 'A' COLLATE UTF8_...
Why is MySQL's default collation latin1_swedish_ci?
...when other options seem much more reasonable, like latin1_general_ci or utf8_general_ci ?
2 Answers
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Why does modern Perl avoid UTF-8 by default?
...oth these lines, not just one of them. Note however that under v5.14, the utf8 warning class comprises three other subwarnings which can all be separately enabled: nonchar, surrogate, and non_unicode. These you may wish to exert greater control over.
use warnings;
use warnings qw( FATAL utf8 );
D...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
... This seems to be working for me. My users were submitting text on a utf8 page with tinymce, yet for some unknown reason non utf8 characters sometimes ended up in the database. This fixed it, so thank you very much.
– giorgio79
Oct 13 '12 at 14:27
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Converting Stream to String and back…what are we missing?
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a UTF8 MemoryStream to String conversion:
var res = Encoding.UTF8.GetString(stream.GetBuffer(), 0 , (int)stream.Length)
share
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Changing default encoding of Python?
...exist, here!
reload(sys) # Reload does the trick!
sys.setdefaultencoding('UTF8')
(Note for Python 3.4+: reload() is in the importlib library.)
This is not a safe thing to do, though: this is obviously a hack, since sys.setdefaultencoding() is purposely removed from sys when Python starts. Reenab...
How to find the array index with a value?
... edited Jun 24 '19 at 15:08
vba_user111
20911 silver badge1313 bronze badges
answered Sep 8 '11 at 10:49
v...
Objective-C and Swift URL encoding
...d,
NULL,
CFSTR("!*'();:@&=+$,/?%#[]\" "),
kCFStringEncodingUTF8));
Using Core Foundation Without ARC:
NSString *escapedString = (NSString *)CFURLCreateStringByAddingPercentEscapes(
NULL,
(CFStringRef)unescaped,
NULL,
CFSTR("!*'();:@&=+$,/?%#[]\" "),
kCFStr...
Check if database exists in PostgreSQL using shell
...------------+------------+-----------------------
my_db | my_user | UTF8 | en_US.UTF8 | en_US.UTF8 |
postgres | postgres | LATIN1 | en_US | en_US |
template0 | postgres | LATIN1 | en_US | en_US | =c/postgres +
| | | ...