Python - 如何继续计算最后一个学生人数？

Question

我有这个菜单驱动的 python 程序，它允许用户创建、添加和查看学生记录。该程序将信息存储在一个数组中。

MENU = """\n ---------------- MENU ---------------- \n
      Enter  [1] to Create
             [2] to View """
def main(): 
    while True:
        print(MENU)
        command = acceptCommand()
        runCommand(command)
def acceptCommand():
    while True:
        command = input("\n Enter choice: ")
        if not command in COMMANDS:
            print("\n ERROR! Command is not recognized.")
        else:
            return command
            break
def runCommand(command):
    if command == '1':
        sleep(1)
        clear()
        create()
    elif command == '2':
        sleep(1)
        clear()
        view()
studentRecord = [] 

def create():
    print("\n \t ------- CREATE STUDENT INFORMATION ------- \n")

    recordSize = int (input("\n Enter Number of Students: "))

    for size in range(recordSize):
        studentNumber = size + 1
        print("\n -------------------------------------------------")
        print("\n Student No.", studentNumber)
        studentName = input(" Student Name: ")
        math = int(input("\n \t \t Math Grade: "))
        science = int(input("\t \t Science Grade: "))
        english = int(input("\t \t English Grade: "))
        filipino = int(input("\t \t Filipino Grade: "))
        average = float((math + science + english + filipino)/4)
        average = round(average, 2)
        print("\n \t \t Average Grade is:", average)
        studentRecord.append([studentNumber, studentName, math, science, english, filipino, average])

    print("\n----------------------------------")
    print("Student Data created successfully!")
    print("----------------------------------")
    input("\n \t Press any key to continue...")
    clear() # This basically clears the screen and goes to the menu

def view():
    print("\n \t ------- VIEW STUDENT RECORD -------")
    print("\n -------------------------------------------------")
    for student in studentRecord:
        print(f" Student No. {student[0]}")
        print(f" Student Name: {student[1]}")
        print(f"\n \t Math Grade: {student[2]}")
        print(f"\t Science Grade: {student[3]}")
        print(f"\t English Grade: {student[4]}")
        print(f"\t Filipino Grade: {student[5]}")
        print(f"\n \t Average: {student[6]}")
        print(" -------------------------------------------------")   
    input("\n Press enter to continue...")
    clear() # This basically clears the screen and goes to the menu

所以在这个程序中你可以创建和查看你创建的学生记录，然后你可以再次回到create()函数添加另一组记录。

我的问题是，每当我尝试制作另一组记录时，学号就会再次回到“1”。

例如，我在我的记录中添加了 1 个学生。但不是显示Student No. 3。它再次显示Student No. 1

         ------- VIEW STUDENT RECORD -------

 -------------------------------------------------        
 Student No. 1
 Student Name: Harry

         Math Grade: 99
         Science Grade: 99
         English Grade: 99
         Filipino Grade: 99

         Average: 99.0
 -------------------------------------------------        
 Student No. 2
 Student Name: Luke

         Math Grade: 89
         Science Grade: 89
         English Grade: 89
         Filipino Grade: 89

         Average: 89.0
 -------------------------------------------------  
# This is my new added data
  
 Student No. 1
 Student Name: Michael

         Math Grade: 78
         Science Grade: 77
         English Grade: 77
         Filipino Grade: 77

         Average: 77.25
 -------------------------------------------------        

 Press enter to continue...

我尝试删除 studentNumber = size + 1 部分，因为我认为这是我错误的根源。

我尝试将其替换为studentNumber = [x+1 for x in studentRecord[0]]，但它会提示错误消息，“IndexError：列表索引超出范围"

有没有办法继续统计最后一个学生号？

Answer 1

def create():
    print("
 	 ------- CREATE STUDENT INFORMATION ------- 
")

    recordSize = int (input("
 Enter Number of Students: "))

    studentNumber = len(studentRecord)

    for size in range(recordSize):
        studentNumber = studentNumber + size
        print("
 -------------------------------------------------")
        print("
 Student No.", studentNumber)
        studentName = input(" Student Name: ")

我认为 studentNumber 最初是在这条线上定义的 recordSize = int (input(" Enter Number of Students: "))

如果你想知道最后一个学生编号， 你必须得到 studentRecord 的长度

这对你有用吗？