大约有 4,500 项符合查询结果（耗时：0.0226秒） [XML]
How to check that a string is an int, but not a double, etc.?
...he OP asked to validate strings, not floats. It will work if you pass in '-1.0' (a string) It will not work if you pass in -1.0 (a float), but that wasn't a requirement to start with. See 3v4l.org/bOX6X
– Gordon
Feb 11 at 6:45
...
Is there a standard naming convention for git tags? [closed]
...
Version 1.0.0 of Semantic Versioning, by Tom Preston-Werner of GitHub fame, had a sub-specification addressing this:
Tagging Specification (SemVerTag)
This sub-specification SHOULD be used if you use a version control system...
Formatting Decimal places in R
...(1.20, 2), nsmall = 2)
# [1] "1.20"
format(round(1, 2), nsmall = 2)
# [1] "1.00"
format(round(1.1234, 2), nsmall = 2)
# [1] "1.12"
A more general function is as follows where x is the number and k is the number of decimals to show. trimws removes any leading white space which can be useful if you ...
Format XML string to print friendly XML string
... XML fragment without an xml declaration (ie without the <?xml version="1.0" encoding="UTF-8" ?> line at the top) and it worked fine.
– Simon Tewsi
Sep 5 '13 at 21:10
3
...
What's the difference between fill_parent and wrap_content?
...t_gravity
XML for above images
Vertical LinearLayout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layou...
How to determine when a Git branch was created?
...
Pro Git § 3.1 Git Branching - What a Branch Is has a good explanation of what a git branch really is
A branch in Git is simply a lightweight movable pointer to [a] commit.
Since a branch is just a lightweight pointer, git has no ...
Custom checkbox image android
...
Create a drawable checkbox selector:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:drawable="@drawable/checkbox"
android:state_checked="false"/>
<item android:dra...
Gridview with two columns and auto resized images
...nd set the number of columns to 2:
res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<GridView
android...
C++ semantics of `static const` vs `const`
...namespace scope (6.3.6) has internal linkage if it is the name of
(3.1) — a variable, function or function template that is explicitly declared static; or,
(3.2) — a non-inline variable of non-volatile const-qualified type that is neither explicitly declared extern nor
previously dec...
Swift Programming: getter/setter in stored property
...gth \(sideLength)."
}
}
var triangle = EquilateralTriangle(sideLength: 3.1, name: "a triangle")
triangle.perimeter
triangle.perimeter = 9.9
triangle.sideLength”
share
|
improve this answer
...