package edu.xcdq;
import java.util.Scanner;
public class Demo04 {
public static void main(String[] args) {
Scanner scanner =new Scanner(
System.in);
System.out.println("考试成绩是：");
int score = scanner.nextInt();
// 单独判断
if ( score ==80 ) {
System.out.println("A");
}
if (score <80 && score >=70 ) {
System.out.println("B");
}
if (score <70 && score >=60 ){
System.out.println("C");
}
if (score <60 ){
System.out.println("D");
}
// 多重if
if (score >=80 ){
System.out.println("A");
}else if (score >=70 ) {
System.out.println("B");
}else if (score >=60 ) {
System.out.println("C");
}else {
System.out.println("D");
}
// switch
switch (score/10) {
case 9:
case 8:
System.out.println("A");
break;
case 7:
System.out.println("B");
break;
case 6:
System.out.println("C");
break;
default:
System.out.println("D");
break;
}
}
}
