大约有 40,000 项符合查询结果（耗时：0.0591秒） [XML]
Finding out whether a string is numeric or not
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Validate by regular expression, by pattern "^[0-9]+$", with following method -validateString:withPattern:.
[self validateString:"12345" withPattern:"^[0-9]+$"];
If "123.123" is considered
With pattern "^[0-9]+(.{1}[0-9]+)?$"
If...
Static and Sealed class differences
...c
class using the new keyword. Static classes are loaded automatically
by the .NET Framework common language runtime (CLR) when the program
or namespace containing the class is loaded.
Sealed Class
A sealed class cannot be used as a base class. Sealed classes are
primarily used to prev...
Multiple cases in switch statement
... I think that you can still mix both options in a syntactically better way by doing:
switch (value)
{
case 1: case 2: case 3:
// Do Something
break;
case 4: case 5: case 6:
// Do Something
break;
default:
// Do Something
break;
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Comparison of CI Servers? [closed]
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Geez. That matrix suffers from "DeathByOverload". Basic UX dictates that large grids are useless unless there's filtering. To add insult to injury, there's no download (csv) and the markdown cannot be downloaded directly. Even that resisted copying into excel......
Displaying better error message than “No JSON object could be decoded”
...n/0.9 so you can use easy_install or pip to get it.
for the example given by tom:
>>> rson.loads('[1,2,]')
...
rson.base.tokenizer.RSONDecodeError: Unexpected trailing comma: line 1, column 6, text ']'
RSON is a designed to be a superset of JSON, so it can parse JSON files. It also has...
pandas DataFrame: replace nan values with average of columns
...rain and test... You MUST first split into train and test, then replace NA by mean on train and then apply this stateful preprocessing model to test, see the answer involving sklearn below!
– Fabian Werner
Aug 28 '19 at 9:18
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How do you implement a “Did you mean”? [duplicate]
...If you want to take it to the next level then I suggest you read the paper by Microsoft Research on that subject. You can find it here
The paper has a great introduction but after that you will need to be knowledgeable with concepts such as the Hidden Markov Model.
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how do I use the grep --include option for multiple file types?
...lowing the '...' token, include that token.
Therefore, after quote removal by the shell, the following 3 literal arguments are ultimately passed to grep:
--include=*.html
--include=*.php
--include=*.htm
[1] More accurately, it's only the syntax-relevant parts of the brace expansion that must ...
Visual Studio debugging/loading very slow
...bug/thread/…. Btw thanks for the great answer
– Bobby Tables
Mar 5 '13 at 11:04
16
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Unit Testing: DateTime.Now
... unit testing with static state, always remember to tear down your fixture by calling TimeProvider.ResetToDefault().
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