题解 | #班级管理#

class Student:
    def __init__(self, name, id, score, grade):
        self.name = name
        self.id = id
        self.score = score
        self.grade = grade
    def student_imfo(self):
        return "%s's student number is %s, and his grade is %s. He submitted %s assignments, each with a grade of %s" %(self.name, self.id, self.score, len(self.grade.split()), ''.join(self.grade))

name = input()
id = input()
score = input()
grade = input()
student = Student(name, id, score, grade)
print(student.student_imfo())