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4.6 ʸ»ú¤Èʸ»úÎó¤ÎÊÑ´¹

ËÜÀá¤Ç¤Ï¡¢Ê¸»ú¤äʸ»úÎó¤ÈÀ°¿ô¤Î¤¢¤¤¤À¤ÎÊÑ´¹´Ø¿ô¤Ë¤Ä¤¤¤ÆÀâÌÀ¤·¤Þ¤¹¡£ format¤Èprin1-to-string¡Êsee Output Functions¡Ë¤Ï¡¢ Lisp¥ª¥Ö¥¸¥§¥¯¥È¤òʸ»úÎó¤ËÊÑ´¹¤¹¤ë¤¿¤á¤Ë»È¤¨¤Þ¤¹¡£ read-from-string¡Êsee Input Functions¡Ë¤Ï¡¢ Lisp¥ª¥Ö¥¸¥§¥¯¥È¤Îʸ»úÎóɽ¸½¤ò¥ª¥Ö¥¸¥§¥¯¥È¤Ë¡ØÊÑ´¹¡Ù¤Ç¤­¤Þ¤¹¡£ ´Ø¿ôstring-make-multibyte¤Èstring-make-unibyte¤Ï¡¢ ʸ»úÎó¤Î¥Æ¥­¥¹¥Èɽ¸½¤òÊÑ´¹¤·¤Þ¤¹¡Êsee Converting Representations¡Ë¡£

¥Æ¥­¥¹¥Èʸ»ú¤È°ìÈÌ¤ÎÆþÎÏ¥¤¥Ù¥ó¥È¤Î¥Æ¥­¥¹¥Èɽ¸½¤òÀ¸À®¤¹¤ë´Ø¿ô ¡Êsingle-key-description¤Ètext-char-description¡Ë¤Ë¤Ä¤¤¤Æ¤Ï¡¢ See Documentation¡£ ¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢¼ç¤Ë¡¢¥Ø¥ë¥×¥á¥Ã¥»¡¼¥¸¤ÎºîÀ®¤Ë»È¤¤¤Þ¤¹¡£

Function: char-to-string character

¤³¤Î´Ø¿ô¤Ï¡¢1¤Ä¤Îʸ»úcharacter¤À¤±¤ò´Þ¤à¿·¤¿¤Êʸ»úÎó¤òÊÖ¤¹¡£ ´Ø¿ôstring¤Î¤Û¤¦¤¬¤è¤êÈÆÍѤǤ¢¤ë¤Î¤Ç¡¢ ¤³¤Î´Ø¿ô¤Ï¤Û¤ÜÇÑ¤ì¤Æ¤¤¤ë¡£ see Creating Strings¡£

Function: string-to-char string

¤³¤Î´Ø¿ô¤Ï¡¢string¤ÎÀèÆ¬Ê¸»ú¤òÊÖ¤¹¡£ ʸ»úÎ󤬶õ¤Ç¤¢¤ë¤È´Ø¿ô¤Ï0¤òÊÖ¤¹¡£ ʸ»úÎóstring¤ÎÀèÆ¬Ê¸»ú¤¬¡¢ASCII¥³¡¼¥É¤¬0¤Î¥Ê¥ëʸ»ú¤Ç¤¢¤ë¤È¤­¤â¡¢ ÃͤÏ0¤Ç¤¢¤ë¡£

(string-to-char "ABC")
     ⇒ 65
(string-to-char "xyz")
     ⇒ 120
(string-to-char "")
     ⇒ 0
(string-to-char "\000")
     ⇒ 0

¤³¤Î´Ø¿ô¤Ï¡¢Â¸Â³¤µ¤»¤ë¤Û¤ÉÍ­ÍѤǤʤ±¤ì¤Ð¡¢¾­Íè¡¢¼è¤ê½ü¤¯¤«¤â¤·¤ì¤Ê¤¤¡£

Function: number-to-string number

¤³¤Î´Ø¿ô¤Ï¡¢number¤Îɽ¼¨É½¸½¤Ç¤¢¤ëʸ»úÎó¤òÊÖ¤¹¡£ number¤ÏÀ°¿ô¤«ÉâÆ°¾®¿ôÅÀ¿ô¡£ °ú¿ô¤¬Éé¤Ç¤¢¤ì¤ÐÃͤÎʸ»úÎó¤ÏÉ乿¤Ç»Ï¤Þ¤ë¡£

(number-to-string 256)
     ⇒ "256"
(number-to-string -23)
     ⇒ "-23"
(number-to-string -23.5)
     ⇒ "-23.5"

int-to-string¤Ï¡¢¤³¤Î´Ø¿ô¤Î¤Û¤ÜÇÑ¤ì¤Æ¤¤¤ëÊÌ̾¡£

Formatting Strings¤Îformat¤â»²¾È¡£

Function: string-to-number string &optional base

¤³¤Î´Ø¿ô¤Ï¡¢stringÆâ¤Îʸ»ú·²¤¬É½¤¹¿ôÃͤòÊÖ¤¹¡£ base¤¬nil°Ê³°¤Ê¤é¤Ð¡¢¤³¤ì¤ò´ð¿ô¤È¤·¤ÆÀ°¿ô¤ËÊÑ´¹¤¹¤ë¡£ base¤¬nil¤Ê¤é¤Ð10¤ò´ð¿ô¤È¤¹¤ë¡£ ÉâÆ°¾®¿ôÅÀ¿ô¤ÎÊÑ´¹¤Ï¤Ä¤Í¤Ë10¤ò´ð¿ô¤È¤¹¤ë¡£ ÉâÆ°¾®¿ôÅÀ¿ô¤ËÂФ·¤Æ¤ÏÊ̤δð¿ô¤ò¼ÂÁõ¤·¤Æ¤¤¤Ê¤¤¡£ ºî¶ÈÎ̤⿤¯¤½¤Î¤ï¤ê¤Ë¤ÏÍ­ÍѤȤâ»×¤¨¤Ê¤¤¤«¤é¤Ç¤¢¤ë¡£

²òÀϤ¹¤ë¤È¤­¡¢string¤ÎÀèÆ¬¤Ë¤¢¤ë¶õÇò¤ä¥¿¥Ö¤Ï̵»ë¤·¡¢ ¿ô¤È²ò¼á¤Ç¤­¤ë¸Â¤ê¤òstring¤«¤éÆÉ¤ß¼è¤ë¡£ ¡ÊÀèÆ¬¤Î¶õÇò¤ä¥¿¥Ö°Ê³°¤Î¾¤ÎÇòʸ»ú¤ò̵»ë¤¹¤ë¥·¥¹¥Æ¥à¤â¤¢¤ë¡£¡Ë ̵»ë¤·¤¿Çòʸ»ú¤Î¤¢¤È¤ÎºÇ½é¤Îʸ»ú¤¬¡¢¿ô»úʸ»ú¡¢¥×¥é¥¹µ­¹æ¡¢ ¥Þ¥¤¥Ê¥¹µ­¹æ¤Ç¤Ê¤±¤ì¤Ð¡¢¤³¤Î´Ø¿ô¤Ï0¤òÊÖ¤¹¡£

(string-to-number "256")
     ⇒ 256
(string-to-number "25 is a perfect square.")
     ⇒ 25
(string-to-number "X256")
     ⇒ 0
(string-to-number "-4.5")
     ⇒ -4.5

string-to-int¤Ï¤³¤Î´Ø¿ô¤ÎÇѤ줿ÊÌ̾¡£

ʸ»úÎ󤨡¿¤«¤éÊÑ´¹¤¹¤ë¤½¤Î¾¤Î´Ø¿ô¤ò°Ê²¼¤Ë¤¢¤²¤Æ¤ª¤­¤Þ¤¹¡£

concat

concat¤Ï¡¢¥Ù¥¯¥È¥ë¤ä¥ê¥¹¥È¤òʸ»úÎó¤ØÊÑ´¹¤¹¤ë¡£ see Creating Strings¡£

vconcat

vconcat¤Ï¡¢Ê¸»úÎó¤ò¥Ù¥¯¥È¥ë¤ØÊÑ´¹¤¹¤ë¡£ see Vector Functions¡£

append

append¤Ï¡¢Ê¸»úÎó¤ò¥ê¥¹¥È¤ØÊÑ´¹¤¹¤ë¡£ see Building Lists¡£