could ildg wrote: > I know that ":" can do slice works. > But I saw "::" today and it puzzled me much, > I can't find it in the python doc, > so I raise this question here. > The code is as below: > ---------------------------------------------------------- > Jython 2.2a1 on java1.5.0_03 (JIT: null) > Type "copyright", "credits" or "license" for more information. > >>>>live='live';print live > > live > >>>>live=live[::-1];print live > > evil > > -------------------------------------------------------- > "[::-1]" can reverse a string magicly, how did it do it?
The full form would be live[len(live)-1:-1:-1] much like range(len(live)-1, -1, -1). [start:stop:step] step can be negative. -- Robert Kern [EMAIL PROTECTED] "In the fields of hell where the grass grows high Are the graves of dreams allowed to die." -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
