Java学习之if---elif语句

public class elif1{
  public static void main(String[] args){
  int testScore=50;
  char grade;
  if(testScore>=90){
    grade='A';}
    else if(testScore>=80){grade='B';}
    else if(testScore>=70){grade='C';}
    else if(testScore>=60){grade='D';}
  else{grade='E';}
  System.out.println("你的成绩是: "+grade);
  } 
}