package Day3_27;
import java.util.*;
public class Administrator {
void giveMess(int number){
int d1=number%10;
int d2=number%100;
int d3=number%1000;
if(number/10000<=0||number/10000>=10){
System.out.println("please input the real number");
}
else if(d1==1||d1==3||d1==9){
System.out.println("你中了三等奖");
}
else if(d2==29||d2==46||d2==21){
System.out.println("你中了二等奖");
}
else if(d3==875||d3==326||d3==596){
System.out.println("你中了一等奖");
}
else{
System.out.println("you lose");
}
}
}

package Day3_27;
import java.util.*;
public class Example3_2 {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner reader=new Scanner(System.in);
System.out.println("please input the number and push enter");
int number=reader.nextInt();
Administrator person=new Administrator();
person.giveMess(number);
}
}

就是如果输入号码是22229的话他只会说我中了三等奖 可我明明中的是二等奖啊

没人的话我一会再来问一次

执行了 if(d1==1||d1==3||d1==9) 这个 ，肯定不会再执行下面那个了啊

那判断写多点

public class Administrator {
void giveMess(int number){
if(number/10000<=0||number/10000>=10){
System.out.println("请输入五位彩票号码");
}
else{
int d1=number%10;
int d2=number%100;
int d3=number%1000;
switch(d1){
case 1:
case 9:
case 3:
System.out.println("彩票是三等奖");
default:
System.out.println("彩票不是三等奖");
}
switch(d2){
case 29:
case 46:
case 21:
System.out.println("彩票是二等奖");
default:
System.out.println("彩票不是二等奖");
}
switch(d3){
case 875:
case 326:
case 112:
System.out.println("窝草你中了一等奖！！！");
break;
default:
System.out.println("彩票不是一等奖");
}
}
}
}

把所有的else删了，每个if里最后加句return