„¢ÀÚ£¬ÄãºÃ
print msg[7:] == '' 
Ï൱ÓÚ print (msg[7:] == '') ÊǸöÂß¼­Öµ
¶ømsg[7:]ÊÇÒ»¸ö×Ö·û¡£
ËùÒÔ
if msg[7:]:
    print 'ok' # È´ÓÖ´òÓ¡²»³öok×ÖÑù

Qutr £¬ qutianrang at gmail.com 
2005-7-18 
----- ÊÕµ½ÒÔÏÂÀ´ÐÅÄÚÈÝ ----- 
·¢¼þÈË: „¢ÀÚ 
ÊÕ¼þÈË: python-chinese 
ʱ  ¼ä: 2005-07-18, 16:29:47
Ö÷  Ìâ: [python-chinese] pythonÖйØÓÚ±í´ïʽµÄÒÉÎÊ£¬Çë½Ì


msg = 'hello'
print msg[7:] == '' # ´òÓ¡True
µ«ÊÇ
if msg[7:]:
    print 'ok' # È´ÓÖ´òÓ¡²»³öok×ÖÑù£¬²»Ã÷°×

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