两种写法有何区别呢?
宵 2013-09-10 06:30:29 1,
BufferedInputStream bin = new BufferedInputStream(System.in);
InputStreamReader insr = new InputStreamReader(bin);
BufferedReader br = new BufferedReader(insr);
String str = br.readLine();
2,
InputStreamReader insr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(insr);
String str = br.readLine();