大约有 32,293 项符合查询结果（耗时：0.0395秒） [XML]
What is the easiest way to remove all packages installed by pip?
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Actually — it seems (from what I just ran into) whereas wipeenv while within the environment throws an error and doesn't remove anything if used in the context of a pip install -e development build, attempting to use virtualenv --clear MYENV doesn't t...
What is the difference between a map and a dictionary?
...is a data structure that maps keys to values. Isn't a dictionary the same? What is the difference between a map and a dictionary 1 ?
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Converting int to bytes in Python 3
... It should also be noted that bytes([3]) is still different from what the OP wanted – namely the byte value used to encode the digit "3" in ASCII, ie. bytes([51]), which is b'3', not b'\x03'.
– lenz
Apr 1 '17 at 21:13
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How to copy text programmatically in my Android app?
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What is label?
– Alaa M.
Dec 2 '16 at 22:51
2
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string.ToLower() and string.ToLowerInvariant()
What's the difference and when to use what? What's the risk if I always use ToLower() and what's the risk if I always use ToLowerInvariant() ?
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C# - What does the Assert() method do? Is it still useful?
...oints and I realize the assert call? I thought it was only for unit tests. What does it do more than breakpoint? Since I can breakpoint, why should I use Assert?
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What is the best way to filter a Java Collection?
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Nice but the static imports obfuscate whats going on. For reference, select/having/on are static imports on ch.lambdaj.Lambda, greaterThan is org.hamcrest.Matchers
– MikePatel
Mar 15 '12 at 11:57
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Two versions of python on linux. how to make 2.7 the default
..., it's more common to have /usr/local/bin ahead of /usr/bin, and it may be what you actually want—but if you have it the other way around, presumably there's a good reason for that.)
But you don't need to change your default Python to get the system to run 2.7 when you type python.
First, you ...
Why is the Java main method static?
...void main(String[] args){
}
}
Should the JVM call new JavaClass(int)? What should it pass for x?
If not, should the JVM instantiate JavaClass without running any constructor method? I think it shouldn't, because that will special-case your entire class - sometimes you have an instance that ha...
Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
...ing a web application that will be executed on a container such as Tomcat. What Tomcat does is create a class loader for each web application (so that it can unload the webapps later and release memory -- you need a dedicated class loader for this to work!). In this situation, you can see that both ...