大约有 10,150 项符合查询结果(耗时:0.0322秒) [XML]

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Does reading an entire file leave the file handle open?

If you read an entire file with content = open('Path/to/file', 'r').read() is the file handle left open until the script exits? Is there a more concise method to read a whole file? ...
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When should we use mutex and when should we use semaphore

When should we use mutex and when should we use semaphore ? 12 Answers 12 ...
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How to output numbers with leading zeros in JavaScript [duplicate]

I can round to x amount of decimal places with math.round but is there a way to round left of the decimal? for example 5 becomes 05 if I specify 2 places ...
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How exactly to use Notification.Builder

I found that I am using a deprecated method for noficitations (notification.setLatestEventInfo()) 11 Answers ...
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Ruby function to remove all white spaces?

What is the Ruby function to remove all white spaces? I'm looking for something kind of like PHP's trim() ? 23 Answers ...
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Diff Algorithm? [closed]

I've been looking like crazy for an explanation of a diff algorithm that works and is efficient. 5 Answers ...
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SQLite add Primary Key

I created a table in Sqlite by using the CREATE TABLE AS syntax to create a table based on a SELECT statement. Now this table has no primary key but I would like to add one. ...
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In C/C++ what's the simplest way to reverse the order of bits in a byte?

While there are multiple ways to reverse bit order in a byte, I'm curious as to what is the "simplest" for a developer to implement. And by reversing I mean: ...
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Is there a __CLASS__ macro in C++?

Is there a __CLASS__ macro in C++ which gives the class name similar to __FUNCTION__ macro which gives the function name ...
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What is that “total” in the very first line after ls -l? [closed]

What is the total in the output of ls -l ? 4 Answers 4 ...