鐃緒申鐃緒申鐃緒申任鐃縦器申戮討澆鐃緒申鐃�

鐃宿加わ申調鐃駿わ申鐃塾わ申

  • NaN鐃緒申Inf鐃塾逸申鐃緒申 - 鐃緒申鐃緒申鐃緒申反鐃緒申鐃緒申鐃�
  • 鐃瞬ワ申鐃緒申鐃粛ワ申奪鐃緒申廚平鐃緒申鐃緒申鐃�

JavaScript

Perl鐃夙以鰹申鐃夙誌申鐃銃わ申鐃暑。

  • NaN鐃緒申NaN鐃緒申Inf鐃緒申Infinity鐃夙わ申鐃緒申名鐃緒申鐃夙み刻申鐃緒申
  • 鐃緒申鐃緒申鐃粛ワ申奪鐃緒申平鐃緒申鐃�true鐃緒申鐃緒申鐃緒申false
#!/usr/bin/js

tell_me_the_truth = function(s){
    var p;
    eval('p = ' + s);
    if (p){
        print('\'' + s + '\' (' + p + ')' + ' is TRUE.');
    }
    else{
        print('\'' + s + '\' (' + p + ')' + ' is FALSE.');
    }
};
tell_me_the_truth('true');
tell_me_the_truth('false');
tell_me_the_truth('0');
tell_me_the_truth('1');
tell_me_the_truth('0.0');
tell_me_the_truth('NaN');
tell_me_the_truth('NaN === NaN');
tell_me_the_truth('isNaN(NaN)');
tell_me_the_truth('Infinity');
tell_me_the_truth('Infinity - 1');
tell_me_the_truth('Infinity - Infinity');
tell_me_the_truth('"0"');
tell_me_the_truth('"0.0"');
tell_me_the_truth('""');
tell_me_the_truth('[]');
tell_me_the_truth('{}');
tell_me_the_truth('null');
tell_me_the_truth('undefined');
tell_me_the_truth('!!undefined');
tell_me_the_truth('!!1');

Perl

  • NaN鐃緒申'nan'+0鐃緒申Inf鐃緒申'inf'+0鐃緒申
  • 他鐃祝わ申()(鐃緒申鐃所ス鐃緒申)鐃緒申鐃緒申鐃緒申鐃藷、駈申鐃熟ッワ申鐃遵が鐃緒申鐃緒申
  • 鐃緒申鐃緒申鐃粛ワ申奪鐃緒申平鐃緒申鐃�1鐃緒申鐃緒申鐃緒申''(鐃緒申文鐃緒申鐃緒申;鐃緒申鐃粛ワ申鐃緒申謄鐃緒申鐃緒申箸任鐃�0鐃緒申鐃緒申)
#!/usr/bin/perl
use strict;
use warnings;

our $nan = 'nan' + 0;
our $inf = 'inf' + 0;

sub tell_me_the_truth{
    my $s = shift;
    my $p = eval $s;
    local $\ = "\n"; # say
    if ($p){
        print "'$s' ($p) is TRUE."
    }
    else{
        print "'$s' ($p) is FALSE."
    }
};

tell_me_the_truth('0');
tell_me_the_truth('1');
tell_me_the_truth('0.0');
tell_me_the_truth('$nan');
tell_me_the_truth('$nan == $nan');
tell_me_the_truth('$inf');
tell_me_the_truth('$inf - 1');
tell_me_the_truth('$inf - $inf');
tell_me_the_truth('"0"');
tell_me_the_truth('"0.0"');
tell_me_the_truth('""');
tell_me_the_truth('my @a = ()');
tell_me_the_truth('my %h = ()');
tell_me_the_truth('[]');
tell_me_the_truth('{}');
tell_me_the_truth('undef');
tell_me_the_truth('!!undef');
tell_me_the_truth('!!1');

Python

  • NaN鐃緒申float('nan')鐃緒申Inf鐃緒申float('inf')鐃緒申
  • !鐃初算鐃述はなわ申鐃緒申鐃緒申鐃緒申鐃�bool()鐃緒申箸鐃緒申襦�
  • 鐃緒申鐃緒申鐃粛ワ申奪鐃緒申平鐃緒申鐃�True鐃緒申鐃緒申鐃緒申False
#!/usr/bin/python

nan = float('nan')
inf = float('inf')

def tell_me_the_truth(s):
    p = eval(s);
    if p:
        print "\'%s\' (%s) is TRUE." % (s, p)
    else:
        print "\'%s\' (%s) is FALSE." % (s, p)


tell_me_the_truth('True')
tell_me_the_truth('False')
tell_me_the_truth('0')
tell_me_the_truth('1')
tell_me_the_truth('0.0')
tell_me_the_truth('nan')
tell_me_the_truth('nan == nan')
tell_me_the_truth('inf')
tell_me_the_truth('inf - 1')
tell_me_the_truth('inf - inf')
tell_me_the_truth('"0"')
tell_me_the_truth('"0.0"')
tell_me_the_truth('""')
tell_me_the_truth('()')
tell_me_the_truth('{}')
tell_me_the_truth('[]')
tell_me_the_truth('None')
tell_me_the_truth('bool(None)')
tell_me_the_truth('bool(1)')

Ruby

  • NaN鐃緒申0.0/0.0鐃緒申Inf鐃緒申1.0/0.0鐃叔削申襪鰹申箸鐃緒申任鐃緒申襪�鐃緒申鐃緒申謄鐃緒申呂覆鐃緒申茲�鐃緒申鐃緒申
  • 鐃緒申鐃緒申鐃粛ワ申奪鐃緒申平鐃緒申鐃�true鐃緒申鐃緒申鐃緒申false
#!/usr/bin/ruby

@nan = 0.0/0.0
@inf = 1.0/0.0

def tell_me_the_truth(s)
    p = eval(s)
    if p
        puts "'#{s}' (#{p}) is TRUE."
    else
        puts "'#{s}' (#{p}) is FALSE."
    end
end

@elist = ();

tell_me_the_truth('true')
tell_me_the_truth('false')
tell_me_the_truth('0')
tell_me_the_truth('1')
tell_me_the_truth('0.0')
tell_me_the_truth('@nan')
tell_me_the_truth('@nan == @nan')
tell_me_the_truth('@inf')
tell_me_the_truth('@inf - 1')
tell_me_the_truth('@inf - @inf')
tell_me_the_truth('"0"')
tell_me_the_truth('"0.0"')
tell_me_the_truth('""')
tell_me_the_truth('@elist')
tell_me_the_truth('{}')
tell_me_the_truth('[]')
tell_me_the_truth('nil')
tell_me_the_truth('!!nil')
tell_me_the_truth('!!1')

Scheme

Ruby鐃祝とてわ申鐃緒申討鐃緒申襦ｏ申箸鐃緒申鐃緒申鐃緒申Ruby鐃緒申鐃夙てわ申鐃緒申討鐃緒申襦�

  • NaN鐃緒申(/ 0 0)鐃緒申Inf鐃緒申(/ 1 0)鐃叔削申襪鰹申箸鐃緒申任鐃緒申襦�
  • #F鐃塾み居申鐃緒申鐃淑鰹申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃所ス鐃夙わ申鐃初真鐃緒申
  • 鐃緒申鐃緒申鐃粛ワ申奪鐃緒申平鐃緒申鐃�#T鐃緒申鐃緒申鐃緒申#F
  • !!鐃熟なわ申鐃緒申鐃緒申鐃緒申鐃盾そ鐃緒申藥誌申劼箸鐃緒申鐃緒申佑鐃緒申鐃緒申鐃緒申里鐃塾わ申鐃淑わ申鐃緒申鐃舜随申鐃塾みでわ申鐃所、!!鐃緒申鐃緒申鐃縮わ申鐃緒申鐃緒申鐃緒申襪鰹申箸鐃緒申鐃緒申鐃緒申
#!/usr/bin/gosh
(define (tell_me_the_truth s)
  (let ((p (eval s (interaction-environment))))
   (if p 
       (print "(" s ") " p " is TRUE")
       (print "(" s ") " p " is FALSE"))))

(define (! p) (not p))
(define (!! p) (not (not p)))

(tell_me_the_truth 0)
(tell_me_the_truth 1)
(tell_me_the_truth "")
(tell_me_the_truth '())
(tell_me_the_truth #f)
(tell_me_the_truth '(/ 0 0))
(tell_me_the_truth '(= (/ 0 0) (/ 0 0)))
(tell_me_the_truth '(/ 1 0))
(tell_me_the_truth '(- (/ 1 0) 1))
(tell_me_the_truth '(- (/ 1 0) (/ 1 0)))
(tell_me_the_truth '(! 1))
(tell_me_the_truth '(!! 1))

鐃殉とわ申

鐃銃醐申鐃緒申砲鐃緒申鐃緒申鐃�true/false鐃殉とわ申 - 鐃緒申鐃塾トルス鐃夙ワ申鐃緒申鐃緒申鐃緒申鐃夙わ申鐃緒申箸里鐃緒申鐃�
鐃殉わ申鐃緒申鐃緒申粉鐃緒申鐃緒申如鐃緒申鐃緒申鐃祝わ申辰匿鐃緒申鐃緒申佑了鐃緒申鐃熟異なわ申里如鐃� if 文鐃叔わ申鐃緒申啀藥誌申劼覆匹鐃緒申略鐃緒申鐃淑わ申鐃緒申鐃緒申鐃渋随申鐃叔わ申鐃緒申!!

鐃殉わ申鐃緒申鐃緒申鐃緒申鐃獣わ申Ruby鐃緒申Scheme鐃熟わ申鐃緒申鐃緒申鐃緒申鐃夙￥申!鐃初算鐃述わ申鐃緒申銚鐃緒申鐃叔わ申鐃緒申弌鐃緒申鐃緒申鐃緒申佑鐃緒申鐃緒申鐃緒申鐃塾にわ申!!鐃緒申箸鐃緒申箸茲わ申鐃�

Dan the Man with Too Many Different Trues and Falses to Check