大约有 1,390 项符合查询结果(耗时:0.0160秒) [XML]

https://stackoverflow.com/ques... 

Regular expression to match numbers with or without commas and decimals in text

...lt;,9>><<99>><<.9>><<99>><<98>><<71>>3 foot fence. – user56512 May 7 '11 at 0:18 ...
https://stackoverflow.com/ques... 

Rails: Is there a rails trick to adding commas to large numbers?

...thod you are looking for is number_with_delimiter. number_with_delimiter(98765432.98, :delimiter => ",", :separator => ".") # => 98,765,432.98 share | improve this answer | ...
https://stackoverflow.com/ques... 

Summarizing multiple columns with dplyr? [duplicate]

...gt; <dbl> <dbl> <dbl> <dbl> #> 1 1 3.08 2.98 2.98 2.91 #> 2 2 3.03 3.04 2.97 2.87 #> 3 3 2.85 2.95 2.95 3.06 If you want to summarize only certain columns, use summarise_at or summarise_if functions. Alternatively, the purrrlyr package provid...
https://stackoverflow.com/ques... 

Should I use a class or dictionary?

...hout slots. Check my post on this answer. – alexpinho98 Apr 30 '13 at 19:57 @alexpinho98: I have tried hard to find t...
https://stackoverflow.com/ques... 

How to extract a floating number from a string [duplicate]

...al sign ... (?: ... (?: \d* \. \d+ ) # .1 .12 .123 etc 9.1 etc 98.1 etc ... | ... (?: \d+ \.? ) # 1. 12. 123. etc 1 12 123 etc ... ) ... # followed by optional exponent part if desired ... (?: [Ee] [+-]? \d+ ) ? ... """ >>> rx = re.compile(numeric...
https://stackoverflow.com/ques... 

How many bytes does one Unicode character take?

...82 UTF-8: E2 84 A2 UTF-16: 21 22 U+2603 SNOWMAN: ☃ Nº: 9731 UTF-8: E2 98 83 UTF-16: 26 03 U+260E BLACK TELEPHONE: ☎ Nº: 9742 UTF-8: E2 98 8E UTF-16: 26 0E U+2614 UMBRELLA WITH RAIN DROPS: ☔ Nº: 9748 UTF-8: E2 98 94 UTF-16: 26 14 U+263A WHITE SMILING FACE: ☺ Nº: 9786 UTF-8: E2 98 ...
https://www.tsingfun.com/it/da... 

MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...

...密码等敏感信息修改了下。 主 192.168.1.100 从 192.168.1.98 修复数据库名 radius 工具安装 在主库服务器安装 #安装依赖包 # yum install perl-DBI perl-DBD-MySQL perl-TermReadKey perl-Time-HiRes #安装工具 # wget percona.com/get/percona-toolkit.tar.gz #...
https://stackoverflow.com/ques... 

Differences between Java 8 Date Time API (java.time) and Joda-Time

I know there are questions relating to java.util.Date and Joda-Time. But after some digging, I couldn't find a thread about the differences between the java.time API (new in Java 8 , defined by JSR 310 ) and Joda-Time . ...
https://stackoverflow.com/ques... 

How to pick a new color for each plotted line within a figure in matplotlib?

... Mark Amery 98.9k4848 gold badges336336 silver badges379379 bronze badges answered Feb 11 '11 at 16:21 tom10tom10...
https://stackoverflow.com/ques... 

Git: Cannot see new remote branch

...545ac9dab49f85cecb5aca0d85cec8fb152d refs/heads/fix/PROJECT-5 e850a29846ee1ecc9561f7717205c5f2d78a992b refs/heads/master ab4539faa42777bf98fb8785cec654f46f858d2a refs/heads/release/1.0.5 dee135fb65685cec287c99b9d195d92441a60c2d refs/heads/release/1.0.4 36e385cec9b639560d1...