大约有 44,000 项符合查询结果（耗时：0.0703秒） [XML]
Check if item is in an array / list
... are going to be doing repeated checks on the list, then it might be worth converting it to a set or frozenset, which can be faster for each check. Assuming your list of strs is called subjects:
subject_set = frozenset(subjects)
if query in subject_set:
# whatever
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“Undefined reference to” template class constructor [duplicate]
... why this is happenning, since I think I have everything properly declared and defined.
3 Answers
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Define static method in source-file with declaration in header-file in C++
...uments of static function. They are not class members. There is no need of converting them to static.
– 999k
Dec 9 '14 at 11:08
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How to compare strings ignoring the case
...) == 0
"Apple".casecmp("APPLE") == 0
#=> true
Alternatively, you can convert both strings to lower case (str.downcase) and compare for equality.
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Boolean vs tinyint(1) for boolean values in MySQL
...ies the semantic meaning of what you're trying to do. Also, many ORMs will convert bool into your programing language's native boolean type.
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Routes with Dash `-` Instead of Underscore `_` in Ruby on Rails
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there has to be a better and faster way to convert all routes that has undersore to hyphens
– carbonr
Mar 31 '13 at 17:59
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Table Header Views in StoryBoards
...e table view, I had to implement viewForHeaderInSection:(NSInteger)section and return this view.
– ozz
Jan 12 '12 at 7:33
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How do Python's any and all functions work?
I'm trying to understand how the any() and all() Python built-in functions work.
8 Answers
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Build query string for System.Net.HttpClient get
...), but then instead of using the returned NameValueCollection, immediately convert it to a Dictionary like so: var dic = values.ToDictionary(x => x, x => values[x]); Add new values to the dictionary, then pass it to the constructor of FormUrlEncodedContent and call ReadAsStringAsync().Result ...
Using vagrant to run virtual machines with desktop environment
... config.vm.box = "ubuntu/bionic64"
# Optional - enlarge disk (will also convert the format from VMDK to VDI):
#config.disksize.size = "50GB"
config.vm.provider "virtualbox" do |vb|
# Display the VirtualBox GUI when booting the machine
vb.gui = true
end
# https://askubuntu.com/qu...