ForNext
Only Do What Only You Can Do
135. iteration
Hyperpolyglot Interpreted Languages: PHP, Perl, Python, Ruby より (2012.05.08)
VBScript
JScript
Perl
while ( ($k, $v) = each %d ) { code }
PHP
foreach ($d as $k => $v ) { code }
Python
for k, v in d.iteritems(): code Python 3: for k, v in d.items(): code
Ruby
d.each do |k,v| code end