diff options
| -rw-r--r-- | Doc/tut/tut.tex | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex index dc59074..f647aed 100644 --- a/Doc/tut/tut.tex +++ b/Doc/tut/tut.tex @@ -549,7 +549,20 @@ operator, and repeated with \code{*}: Two string literals next to each other are automatically concatenated; the first line above could also have been written \samp{word = 'Help' -'A'}; this only works with two literals, not with arbitrary string expressions. +'A'}; this only works with two literals, not with arbitrary string +expressions: + +\begin{verbatim} +>>> 'str' 'ing' # <- This is ok +'string' +>>> string.strip('str') + 'ing' # <- This is ok +'string' +>>> string.strip('str') 'ing' # <- This is invalid + File "<stdin>", line 1 + string.strip('str') 'ing' + ^ +SyntaxError: invalid syntax +\end{verbatim} Strings can be subscripted (indexed); like in \C{}, the first character of a string has subscript (index) 0. There is no separate character @@ -853,6 +866,7 @@ Perhaps the most well-known statement type is the \keyword{if} statement. For example: \begin{verbatim} +>>> # [Code which sets 'x' to a value...] >>> if x < 0: ... x = 0 ... print 'Negative changed to zero' |