Preface
There's
more…
This
section
consists
of
additional
information
about
the
recipe
in
order
to
make
the
reader
more
knowledgeable
about
the
recipe.
See
also
This
section
provides
helpful
links
to
other
useful
information
for
the
recipe.
Conventions
In
this
book,
you
will
find
a
number
of
styles
of
text
that
distinguish
between
different
kinds
of
information.
Here
are
some
examples
of
these
styles,
and
an
explanation
of
their
meaning.
Code
words
in
text,
database
table
names,
folder
names,
filenames,
file
extensions,
pathnames,
dummy
URLs,
user
input,
and
Twitter
handles
are
shown
as
follows:
"In
the
QGIS
Python
Console,
we'll
import
the
random
module."
A
block
of
code
is
set
as
follows:
proj
=
QgsProject.instance()
proj.title("My
QGIS
Project")
proj.title()
proj.writeEntry("MyPlugin",
"splash",
"Geospatial
Python
Rocks!")
proj.readEntry("MyPlugin",
"splash",
"Welcome!")[0]
Any
command-line
input
or
output
is
written
as
follows:
sudo
easy_install
PyPDF2
New
terms
and
important
words
are
shown
in
bold.
Words
that
you
see
on
the
screen,
in
menus
or
dialog
boxes
for
example,
appear
in
the
text
like
this:
"Enter
information
in
the
form
and
click
on
the
Send
button."
Warnings
or
important
notes
appear
in
a
box
like
this.
Tips
and
tricks
appear
like
this.
x
我的内容管理
展开
