A.BufferedWriter B.ByteWriter C.IOReader D.CharReader
A.IO流 B.流 C.字節(jié)序列 D.處理流
A.方便輸出流打印數(shù)據(jù)值 B.降低讀寫效率 C.將字節(jié)轉(zhuǎn)換成字符 D.轉(zhuǎn)換二進(jìn)制數(shù)據(jù)