Java IOѧϰ±Ê¼Ç£º×Ö½ÚÁ÷
Java IOѧϰ±Ê¼Ç£º×Ö½ÚÁ÷
×Ö½ÚÁ÷ÊÇ×î»ù±¾µÄÁ÷£¬ÎļþµÄ²Ù×÷¡¢ÍøÂçÊý¾ÝµÄ´«ÊäµÈµÈ¶¼ÒÀÀµÓÚ×Ö½ÚÁ÷¡£¶ø×Ö·ûÁ÷³£³£ÓÃÓÚ¶ÁÈ¡Îı¾ÀàÐ͵ÄÊý¾Ý»ò×Ö·û´®Á÷µÄ²Ù×÷µÈµÈ¡£
¹ØÓÚ×Ö½ÚÁ÷µÄAPI£¬Ã»Ê²Ã´ºÃ˵µÄ£¬¿´¿´¾ÍÖªµÀÁË¡£ÕâÀïÌô¼¸¸ö¹Ø¼üµã£º
Ò»¡¢InputStreamµÄAPI
1¡¢public int read()
´ÓÊäÈëÁ÷¶ÁÈ¡ÏÂÒ»¸öÊý¾Ý×Ö½Ú¡£·µ»Ø 0 µ½ 255 ·¶Î§ÄÚµÄ int ×Ö½ÚÖµ¡£Èç¹ûÒòÒѵ½´ïÁ÷ĩβ¶øûÓпÉÓõÄ×Ö½Ú£¬Ôò·µ»ØÖµ -1¡£
2¡¢public int read(byte[] b)
´ÓÊäÈëÁ÷ÖжÁÈ¡Ò»¶¨ÊýÁ¿µÄ×Ö½Ú²¢½«Æä´æ´¢ÔÚ»º³åÇøÊý×é b ÖС£ÒÔÕûÊýÐÎʽ·µ»Øʵ¼Ê¶ÁÈ¡µÄ×Ö½ÚÊý¡£Èç¹ûÒòΪÁ÷λÓÚÎļþĩβ¶øûÓпÉÓõÄ×Ö½Ú£¬Ôò·µ»ØÖµ -1£»·ñÔò£¬ÖÁÉÙ¿ÉÒÔ¶ÁÈ¡Ò»¸ö×Ö½Ú²¢½«Æä´æ´¢ÔÚ b ÖС£´Ë·½·¨µÈͬÓÚread(b, 0, b.length)
3¡¢public int read(byte[] b, int off, int len)
½«ÊäÈëÁ÷ÖÐ×î¶à len ¸öÊý¾Ý×Ö½Ú¶ÁÈë×Ö½ÚÊý×é¡£³¢ÊÔ¶ÁÈ¡¶à´ï len ×Ö½Ú£¬µ«¿ÉÄܶÁÈ¡½ÏÉÙÊýÁ¿¡£ÒÔÕûÊýÐÎʽ·µ»Øʵ¼Ê¶ÁÈ¡µÄ×Ö½ÚÊý¡£Èç¹ûÓÉÓÚÒѵ½´ïÁ÷ĩβ¶ø²»ÔÙÓÐÊý¾Ý£¬Ôò·µ»Ø -1¡£
²ÎÊý£º
b - ¶ÁÈëÊý¾ÝµÄ»º³åÇø¡£
off - ÔÚÆ䴦дÈëÊý¾ÝµÄÊý×é b µÄ³õʼƫÒÆÁ¿¡£
len - Òª¶ÁÈ¡µÄ×î´ó×Ö½ÚÊý¡£
¶þ¡¢OutputStreamµÄAPI
1¡¢public void write(int b)
½«Ö¸¶¨µÄ×Ö½ÚдÈë´ËÊä³öÁ÷¡£write µÄ³£¹æж¨ÊÇ£ºÏòÊä³öÁ÷дÈëÒ»¸ö×Ö½Ú¡£ÒªÐ´ÈëµÄ×Ö½ÚÊDzÎÊý b µÄ°Ë¸öµÍλ¡£b µÄ 24 ¸ö¸ß뽫±»ºöÂÔ¡£
2¡¢public void write(byte[] b)
½« b.length ¸ö×Ö½Ú´ÓÖ¸¶¨µÄ×Ö½ÚÊý×éдÈë´ËÊä³öÁ÷¡£write(b) µÄ³£¹æж¨ÊÇ£ºÓ¦¸ÃÓëµ÷Óà write(b, 0, b.length) µÄЧ¹ûÍêÈ«Ïàͬ¡£
3¡¢public void write(byte[] b,
int off,
int len)
½«Ö¸¶¨×Ö½ÚÊý×éÖдÓÆ«ÒÆÁ¿ off ¿ªÊ¼µÄ len ¸ö×Ö½ÚдÈë´ËÊä³öÁ÷¡£write(b, off, len) µÄ³£¹æж¨ÊÇ£º½«Êý×é b ÖеÄijЩ×Ö½Ú°´Ë³ÐòдÈëÊä³öÁ÷£»ÔªËØ b[off] ÊǴ˲Ù×÷дÈëµÄµÚÒ»¸ö×Ö½Ú£¬b[off+len-1] ÊǴ˲Ù×÷дÈëµÄ×îºóÒ»¸ö×Ö½Ú¡£
²ÎÊý£º
b - Êý¾Ý¡£
off - Êý¾ÝÖеijõʼƫÒÆÁ¿¡£
len - ҪдÈëµÄ×Ö½ÚÊý¡£
4¡¢public void flush()
ˢдËÊä³öÁ÷²¢Ç¿ÖÆд³öËùÓлº³åµÄÊä³ö×Ö½Ú¡£flush µÄ³£¹æж¨ÊÇ£ºÈç¹û´ËÊä³öÁ÷µ
Ïà¹ØÎĵµ£º
<!--
/* Font Definitions */
@font-face
{font-family:ËÎÌå;
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-alt:SimSun;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
@font-face
{font-family:Verdana;
panose ......
ÏÂÔØÒ»¸öJDKµÄ°²×°°ü£¬ÎÒÏÂÔصÄÊÇjdk-6u10-rc2-bin-b32-windows-i586-p-12_sep_2008.exe£¬´ó¼Ò¿ÉÒÔÈ¥ÍøÉÏËÑË÷£¬Ò²¿ÉÒÔÈ¥¹Ù·½
ÏÂÔØ¡£
ÏÂÔغ󣬵ã»÷exeÎļþ£¬Ò»Ö±ÏÂÒ»²½µÄ°²×°£¬Óöµ½ÐèҪѡÔñ°²×°Ä¿Â¼µÄ£¬¿ÉÒÔĬÈÏ£¬Ò²¿ÉÒÔ×Ô¼ºÖ¸¶¨£¨ÀýÈçÖ¸¶¨°²×°ÔÚD:\Program Files\Java)
°²×°¹ý³ÌÓÐÁ½´ÎÑ¡Ôñ·¾¶µÄ£¬Ò»´ÎÊǶÔjdk1.6.0_10½ø ......
ÔÚ Java ³ÌÐòÖÐʹÓöàÏß³ÌÒª±ÈÔÚ C »ò C++ ÖÐÈÝÒ׵ö࣬ÕâÊÇÒòΪ Java ±à³ÌÓïÑÔÌṩÁËÓïÑÔ¼¶µÄÖ§³Ö¡£±¾ÎÄͨ¹ý¼òµ¥µÄ±à³ÌʾÀýÀ´ËµÃ÷ Java ³ÌÐòÖеĶàÏß³ÌÊǶàôֱ¹Û¡£¶ÁÍê±¾ÎÄÒÔºó£¬Óû§Ó¦¸ÃÄܹ»±àд¼òµ¥µÄ¶àÏ̳߳ÌÐò¡£
¡¡ Ϊʲô»áÅŶӵȴý?
¡¡¡¡ÏÂÃæµÄÕâ¸ö¼òµ¥µÄ Java ³ÌÐ ......
JavaÖÐͨ¹ýimplements SerializableÀ´ÊµÏÖ¶ÔÏóµÄÐòÁл¯¡£ÆäʵSerializable½Ó¿ÚÖв¢Ã»ÓÐÐèҪʵÏֵķ½·¨£¬×¢Ã÷ij¸öÀàimplements SerializableÖ»ÊÇΪÁ˱êʶ»ò±íÃ÷Õâ¸öÀà¿ÉÒÔ±»ÐòÁл¯¡£
ÄÇôʲôÊÇÐòÁл¯ÄØ£¬ÐòÁл¯ÓÖÓÐʲô×÷ÓÃÄØ£¿
Ò»¸öÀ࣬»ò ......