小编Chr*_*ris的帖子

我只想将参数放在成绩函数中,并将它们的数字等级转换为字母等级.

function Grade(name, grade)  {
      this.name = name;

      this.grade = function(){
        if(grade >= 90){return "A"};
        else if (grade <90 && grade >=80){return "B"}
        else if(grade <80 && grade >= 70) {return "C"}
        else {return "fail"}
      };
    }
    var sally = new Grade("Sally", 72);
    console.log(sally.grade());
    console.log(sally.name);