最终成绩计划 = 不打印实际列表（显示每个人的字母成绩）

Question

我正在尝试创建一个程序，它将： 提示用户输入将要输入的成绩数 输入用户名，然后在两个提示中输入他们的成绩 显示每个人的字母等级 然后根据输入计算班级平均分、最高分和最低分

它应该是什么样子：

Welcome to the Final Grades Program

Enter the number of students: 2

Student's name: paige
Student's mark (%): 89

Student's name: mitzy
Student's mark (%): 78

Paige             A
Mitzy             B

但是，当我按 F5 时，它不会打印实际列表（显示每个人的字母等级），我不知道为什么或我做错了什么。这就是我所拥有的：

import bisect

def grading():
    if int(stuMark) > 80:
        print ("A")
        print ()

    elif int(stuMark) > 70 and int(stuMark) < 79:
        print ("B")
        print ()

    elif int(stuMark) > 60 and int(stuMark) < 69:
        print ("C")
        print ()

    elif int(stuMark) > 50 and int(stuMark) < 59:
        print ("D")
        print ()
         
    elif int(stuMark) < 50:
       print ("F")
       print ()

def intro():
    students = []
    marks = []

    while True:
        # Number of students
        numStudents = input("Enter the number of students: ")
        print ()

        #Info (Name/grade)
        for x in range(int(numStudents)):
            name = input("Student's name: ")
            mark = int(input("Student's mark (%): "))
            print ()
            students.append(name)
            marks.append(mark)

def class_list():
    name = []
    mark = []

    print ()
    print("Student Name \t\t Student Grade")
    print("---------------------------------------------")
    for x in range(len(name)):
        print(f"{name[x]} \t\t\t {mark[x]}")


def main():
    print ("Welcome to the Final Grades Program")
    print()
    intro()
    class_list()

main()

Answer 1

第一个问题是变量的范围。您的姓名、学生和分数列表应该是在程序开始时定义的全局变量。下一个问题是students 和name 列表的用途相同，应该统一。您的最后两个问题是，您没有以字母形式获得成绩，因为您没有调用 grading 函数，并且在要求输入时您有一个不必要的循环，该循环一直持续到程序被破坏并且永远不会继续输出成绩

这里是固定代码：

#Your global variables
marks = []
students = []

def grading(stuMark):
    if int(stuMark) > 80:
        return ("A")

    elif int(stuMark) > 70 and int(stuMark) < 79:
        return ("B")

    elif int(stuMark) > 60 and int(stuMark) < 69:
        return ("C")

    elif int(stuMark) > 50 and int(stuMark) < 59:
        return ("D")
         
    elif int(stuMark) < 50:
        return ("F")

    
def intro():

    # Number of students
    numStudents = input("Enter the number of students: ")
    print ()

    #Info (Name/grade)
    for x in range(int(numStudents)):
        name = input("Student's name: ")
        mark = int(input("Student's mark (%): "))
        print ()
        students.append(name)
        marks.append(mark)

def class_list():


    print ()
    print("Student Name \t\t Student Grade")
    print("---------------------------------------------")
    for x in range(len(students)):
        print(f"{students[x]} \t\t\t {grading(marks[x])}")


def main():
    print ("Welcome to the Final Grades Program")
    print()
    intro()
    class_list()

main()

输出：

Welcome to the Final Grades Program

Enter the number of students: 2

Student's name: paige
Student's mark (%): 89

Student's name: mitzy
Student's mark (%): 78


Student Name             Student Grade
---------------------------------------------
paige                    A
mitzy                    B