import java.util.Scanner;

public class Exe {

public static void main(String[] args) {

// TODO Auto-generated method stub

Exe.show();

}

public static String[] books={"計(jì)算機(jī)科學(xué)","C語言程序設(shè)計(jì)","數(shù)據(jù)結(jié)構(gòu)","微積分"};

public static void show(){

Scanner input=new Scanner(System.in);

System.out.println("1-按照名稱查找圖書，2-按照序號(hào)查早圖書");

try{

int num=input.nextInt();

switch(num){

case 1:

System.out.println("請(qǐng)輸入圖書名稱");

? ?String name=input.next();

? ?for(int i=0;i<books.length;i++){

? ? if(name.equals(books[i])){

? ? System.out.println("books:"+books[i]);

? ? return;

? ? }

? ?

? ?

? ?

? ?

? ?}

? ?System.out.println("圖書不存在，請(qǐng)重新輸入");

? ? show();

? ?

case 2:

System.out.println("請(qǐng)輸入圖書序號(hào)");

int n=input.nextInt();

for(int i=0;i<books.length;i++){

if(n==i){

System.out.println("books:"+books[n]);

return;

}

}

System.out.println("圖書不存在，請(qǐng)重新輸入序列號(hào)");

show();

}

}

catch(Exception e){

System.out.println("命令輸入有誤，請(qǐng)重新輸入");

show();

}

}

}