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int read£¨£© throws IOException ¶Áȡһ¸ö×Ö½ÚÒÔÕûÊýÐÎʽ·µ»Ø£¬Èç¹û·µ»Ø-1Òѵ½ÊäÈëÁ÷µÄĩβ
void close£¨£© throws IOException ¹Ø±ÕÁ÷ÊÍ·ÅÄÚ´æ×ÊÔ´
long skip£¨long n£© throws IOException Ìø¹ýn¸ö×Ö½Ú²»¶Á
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void write£¨int b£© throws IOException ÏòÊä³öÁ÷дÈëÒ»¸ö×Ö½ÚÊý¾Ý
void flush£¨£© throws IOException ½«Êä³öÁ÷Öлº³åµÄÊý¾ÝÈ«²¿Ð´³öµ½Ä¿µÄµØ
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void write£¨int c£© throws IOException ÏòÊä³öÁ÷дÈëÒ»¸ö×Ö·ûÊý¾Ý
void write£¨String str£© throws IOException½«Ò»¸ö×Ö·û´®ÖеÄ×Ö·ûдÈëµ½Êä³öÁ÷
void write£¨String str£¬int offset£¬int length£© ½«Ò»¸ö×Ö·û´®´Óoffset¿ªÊ¼µÄlength¸ö×Ö·ûдÈëµ½Êä³öÁ÷
void flush£¨£© throws IOException ½«Êä³öÁ÷Öлº³åµÄÊý¾ÝÈ«²¿Ð´³öµ½Ä¿
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import
java
.io.BufferedReader;
import
java
.io.FileInputStream;
import
java
.io.FileNotFoundException;
import
java
.io.FileOutputStream;
import
java
.io.IOException;
import
java
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