How do I use boolean variables in Perl? -

March 15, 2011

मैंने कोशिश की है:

  $ var = false; $ Var = FALSE; $ Var = False;

इनमें से कोई भी काम नहीं है मुझे त्रुटि संदेश मिलता है

 "सच्चा सब्स" उपयोग में है, जबकि "ध्वनि" की अनुमति नहीं है।

पर्ल में, निम्नलिखित सशर्त में झूठे का मूल्यांकन करें:

  0 'undef' '# खाली स्केलर () # खाली सूची (' ')

बाकी सही हैं सच्चा या झूठे के लिए कोई भी बेतरतीब नहीं हैं।


















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