FileInputstream FileOutputStream while(true)( if(fileInputstreamavailable()< 1024) //剩余的资料比1024字节少 //一位一位读出再写人目标文件 int remain 1 hile ((remain fileInputstream read()) !=-1){ fileoutputstream write(remain)i breaki else i //从来源档案读取数据至缓冲区 fileInputstream read (buffer)i //杍数组数据写入目标文件 fileoutputstream write (buffer)iFileInputStream、FileOutputStream while(true) { if(fileInputStream.available() < 1024) { //剩余的资料比1024字节少 //一位一位读出再写入目标文件 int remain = -1; while((remain = fileInputStream.read()) != -1) { fileOutputStream.write(remain); } break; } else { //从来源档案读取数据至缓冲区 fileInputStream.read(buffer); //将数组数据写入目标文件 fileOutputStream.write(buffer); } }