March 27, 2005

¼«Í³¼«ºß Squeak ¥×¥í¥°¥é¥ß¥ó¥°¡§Â裶¾Ï ´ðËÜ¥¯¥é¥¹¥é¥¤¥Ö¥é¥êõ¸¡¨¡¤½¤Î£²(1)

Squeak Logo
ʸ»úÎ󥯥饹·²¡§String, Character
¡ãString¡ä¡§String¥¯¥é¥¹¤ÏCollection¥¯¥é¥¹¤Î¥µ¥Ö¥¯¥é¥¹¤Î°Ù¡¢¥¤¥Æ¥ì¡¼¥È·Ï¥×¥í¥È¥³¥ë¤¬»ÈÍѤǤ­¤ë¡£String¥¯¥é¥¹¤Î¥¤¥ó¥¹¥¿¥ó¥¹¤Ï¡¢¥·¥ó¥°¥ë¥¯¥©¡¼¥Æ¡¼¥·¥ç¥ó¤Ç°Ï¤ó¤À¥ê¥Æ¥é¥ë¡Ö'ʸ»úÎó'¡×¤ÇºîÀ®¤Ç¤­¤ë¡£
ʸ»úÎó¤ÎÏ¢·ë¡§¡Ö,¡×¥«¥ó¥Þ¥á¥Ã¥»¡¼¥¸¤Çʸ»úÎó¤òÏ¢·ë¤Ç¤­¤ë¡£¡¡Î㡧'abcdef' ,'123456'. "print it"
¢¨¡§Ê¸»ú¡ÊCharacter¡Ë¤ÏCollection¥¯¥é¥¹¤Î¥µ¥Ö¥¯¥é¥¹¤Ç¤Ï¤Ê¤¤¤Î¤Ç¡¢¥«¥ó¥Þ¥á¥Ã¥»¡¼¥¸¤ÇÏ¢·ë¤Ç¤­¤Ê¤¤¡£asString¥á¥Ã¥»¡¼¥¸¤Ç¥­¥ã¥¹¥È¤¹¤ëɬÍפ¬Í­¤ë¡£
ʸ»úÎó¤ÎÈæ³Ó¡§¡Ö=¡×¤Çʸ»úÎóƱ»Î¤òÈæ³Ó¤Ç¤­¤ë¡£ ¥¢¥ë¥Õ¥¡¥Ù¥Ã¥È¤ÎÂçʸ»ú¾®Ê¸»ú¤ò¶èÊ̤·¤Ê¤¤¤ÇÈæ³Ó¤¹¤ë¡ÖsameAs¡§¡×¥á¥Ã¥»¡¼¥¸¤âÍ­¤ë¡£¡¡Î㡧'Squeak' = 'squeak'. "print it"¡¡'Squeak' sameAs:'squeak'. "print it"
ʸ»úÎó¤Î¥Þ¥Ã¥Á¡§¡Ömatch:¡×¥á¥Ã¥»¡¼¥¸¤Çʸ»úÎó¤ÎÉôʬ¥Þ¥Ã¥Á¤òȽÃǤǤ­¤ë¡£¥Þ¥Ã¥Á¤¹¤ë¤Ètrue¡¢¥Þ¥Ã¥Á¤·¤Ê¤¤¤Èfalse¤òÊÖ¤¹¡£¡¡È½ÃǤκݡ¢Âçʸ»ú¾®Ê¸»ú¤Ï¶èÊ̤µ¤ì¤º¡¢¡Ö*¡×¤¬0ʸ»ú°Ê¾å¤ÎǤ°Õ¤Îʸ»úÎ󡢡Ö#¡×¤¬Ç¤°Õ¤Î£±Ê¸»ú¤Ë¤Ê¤ë¡£¡¡Î㡧'h#llo sque*' match:'Hello Squeak!'. "print it"
ʸ»úÎó¤Î¸¡º÷¡§¡Ö¡Ê¸¡º÷¤µ¤ì¤ëʸ»úÎó¡Ë findString:¡Ê¸¡º÷¤¹¤ëʸ»úÎó¡Ë startingAt:¡Ê¸¡º÷³«»Ï°ÌÃ֡ˡץá¥Ã¥»¡¼¥¸¤¬»È¤¨¤ë¡ÊÂçʸ»ú¾®Ê¸»ú¤Ï¶èÊ̤µ¤ì¤ë¡Ë¡£¡¡Î㡧'Hello Squeak' findString:'Squeak' startingAt:5. "print it"
¶èÀÚ¤êʸ»ú¤Çʬ³ä¡§¡Ö¡Êʸ»úÎó¡Ë findToTokens:'¡Ê¶èÀÚ¤êʸ»ú¡Ë'¡×¥á¥Ã¥»¡¼¥¸¤¬»È¤¨¤ë¡£¡¡Î㡧'Hello Squeak' findTokens:$e. "print it"¡¡'Hello/Squeak:!' findTokens:'/:'. "print it"
ʸ»úÎó¤ÎÃÖ´¹¡§¡Ö¡Êʸ»úÎó¡Ë copyReplaceAll:¡Ê¸¡º÷ʸ»úÎó¡Ë with:¡ÊÃÖ´¹Ê¸»úÎó¡Ë¡×¥á¥Ã¥»¡¼¥¸¤¬»È¤¨¤ë¡£Ìá¤êÃͤÏÃÖ´¹¤µ¤ì¤¿Ê¸»úÎó¤Î¥¤¥ó¥¹¥¿¥ó¥¹¤Ç¡¢¥ª¥ê¥¸¥Ê¥ë¤Î¥¤¥ó¥¹¥¿¥ó¥¹¤ÏÊѹ¹¤µ¤ì¤Ê¤¤¡£¡¡Î㡧'Hello world!' copyReplaceAll:'world' with:'Squeak'. "print it"

¡ãCharacter¡ä¡§¥ê¥Æ¥é¥ë¡Ö$¡Êʸ»ú¡Ë¡×¤Ç¥¤¥ó¥¹¥¿¥ó¥¹¤òºîÀ®¤Ç¤­¤ë¡£¡¡Character¥¯¥é¥¹¤Î¥¯¥é¥¹¥á¥½¥Ã¥É¥«¥Æ¥´¥ê¡Öaccessing untypeable characters¡×¤Ë¡¢¥ê¥Æ¥é¥ë¤Ç¤ÏÀ¸À®¤·¤Ë¤¯¤¤¥¹¥Ú¡¼¥¹¤ä¥¿¥Ö¤òÀ¸À®¤¹¤ë¥á¥Ã¥»¡¼¥¸¤¬Í­¤ë¡£¡¡Î㡧Character space inspect. "do it"
¥¢¥¹¥­¡¼¥³¡¼¥É¤«¤éʸ»ú¤òÀ¸À®¡§¥¯¥é¥¹¥á¥½¥Ã¥É¡Övalue:¡×¥á¥Ã¥»¡¼¥¸¤Ë¥¢¥¹¥­¡¼¥³¡¼¥É¤ò»ØÄꤷ¤Æ¡¢Ê¸»ú¤òÀ¸À®¤Ç¤­¤ë¡£¡¡Î㡧Character value:65. "print it" Character value:(65+32). "print it"
ʸ»ú¤«¤é¥¢¥¹¥­¡¼¥³¡¼¥É¤òÆÀ¤ë¡§¥¤¥ó¥¹¥¿¥ó¥¹¥á¥½¥Ã¥É¡ÖasciiValue¡×¥á¥Ã¥»¡¼¥¸¤ò»È¤¦¡£¡¡Î㡧$z asciiValue. "print it"
ʸ»úÎó¤Ø¤ÎÊÑ´¹¡§¥ª¥Ö¥¸¥§¥¯¥È¤òʸ»úÎó¤ËÊÑ´¹¤¹¤ë¤Ë¤Ï¡¢¡ÖasString¡×¥á¥Ã¥»¡¼¥¸¤ò»ÈÍѤ¹¤ë¡£¡¡Î㡧12345 asString. "inspect it"¡¡Time now asString. "inspect it"
Squeak¤Î¿¸À¸ìÂбþ¡§MultiString (AbstractString¤Î¥µ¥Ö¥¯¥é¥¹) ¤È MultiCharacter (Character¤Î¥µ¥Ö¥¯¥é¥¹) ¤¬Í­¤ë¡£
¤³¤ì¤é¤Î¥¤¥ó¥¹¥¿¥ó¥¹¤Ï¡¢ÆüËܸì¤Ê¤É¤Î¥Þ¥ë¥Á¥Ð¥¤¥Èʸ»úÎó¤äʸ»ú¤òºîÀ®¤·¤¿»þ¤Ëºî¤é¤ì¤ë¡£¡¡Î㡧'ÆüËܸì' "inspect it"¡¡'ÆüËܸì' last. "inspect it"


Posted by 3k1 at 01:44 P | from category: Squeak | TrackBacks
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