sas var

输出结果的意思

　　public class client2 {

static string readstring(){
//定义静态的读入字符串方法,方法的作用是按行读取输入流数据
bufferedreader br=new bufferedreader(new inputstreamreader(system.in),1);
//读取从控制台输入的字符
string str="";
try {
str=br.readline();
} catch (ioexception e) {
// todo auto-generated catch block
e.printstacktrace();
system.out.println(e.tostring());
}
return str;
}