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...号不是必须的，但主体的大括号是必需的。
let individualScores = [75, 43, 103, 87, 12]
var teamScore = 0
for score in individualScores {
if score > 50 {
teamScores += 3
} else {
teamScores += 1
}
}
teamScore
在 if 语句中，条件必须...
How can I extract a predetermined range of lines from a text file on Unix?
...
808
sed -n '16224,16482p;16483q' filename > newfile
From the sed manual:
p -
Print...
postgresql list and order tables by size
...B | corpdata | table_eee | 1120 MB | 311 MB | 808 MB
The humanized format is represent in bytes, kB, MB, GB, and TB.
bytes to kB - begins from 10240 bytes
bytes to MB - begins from 10485248 bytes = 10239.5 kB ~ 10 MB
bytes to GB - begins from 10736893952 bytes = 102...
What is the point of “final class” in Java?
...Anyone who is planning to obtain an Oracle Java Certification (such as 1Z0-808, etc.) should keep this in mind because there might be questions on this aspect on the exam...
– Igor Soudakevitch
Jun 17 '16 at 20:29
...
Foreign keys in mongo?
...oid::Document
field :name
embeds_many :addresses
embeds_many :scores
end
class Address
include Mongoid::Document
field :address
field :city
field :state
field :postalCode
embedded_in :student
end
class Score
include Mongoid::Document
belongs_to :cours...
How to resize the iPhone/iPad Simulator?
...real iPad screen) on my 23" Full-HD screen (and also on the 15" MacBook Pro ).
11 Answers
...
SQL Server insert if not exists best practice
...itionCompetitors (
[CompetitionID] INT
, [CompetitorID] INT
, [Score] INT
, PRIMARY KEY (
[CompetitionID]
, [CompetitorID]
)
)
With Constraints on CompetitionCompetitors.CompetitionID and CompetitorID pointing at the other tables.
With this kind of tab...
How to Compare Flags in C#?
...
@wraith808: I realized the mistake was was making with my test that you have correct in yours— the power of 2 … = 1, … = 2, … = 4 on the enum values are critically important when using [Flags]. I was assuming that it would ...
How to use Java property files?
... a list of key/value pairs of configuration values I want to store as Java property files, and later load and iterate through.
...
What's the best three-way merge tool? [closed]
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edited May 23 '17 at 11:47
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