Question

到目前为止我的脚本：

#DogReg v1.0
import time
Students = ['Mary', 'Matthew', 'Mark', 'Lianne' 'Spencer'
            'John', 'Logan', 'Sam', 'Judy', 'Jc', 'Aj'  ]

print("1. Add Student")
print("2. Delete Student")
print("3. Edit Student")                             
print("4. Show All Students")
useMenu = input("What shall you do? ")
if(useMenu != "1" and useMenu != "2" and useMenu != "3" and useMenu != "4"):
    print("Invalid request please choose 1, 2, 3, or 4.")
elif(useMenu == "1"):
    newName = input("What is the students name? ")
    Students.append(newName)
    time.sleep(1)
    print(str(newName) + " added.")
    time.sleep(1)
    print(Students)
elif(useMenu == "2"):
    remStudent = input("What student would you like to remove? ")
    Students.remove(remStudent)
    time.sleep(1)
    print(str(remStudent) + " has been removed.")
    time.sleep(1)
    print(Students)
elif(useMenu == "3"):

所以我试图让用户输入他们想要编辑的名称并进行更改。

我尝试查找编辑列表条目的功能，但我还没找到一个我正在寻找的功能。

Answer 1

假设用户想要将'Mary'更改为'Maria'：

student_old = 'Mary'
student_new = 'Maria'
change_index = Students.index(student_old)
Students[change_index] = student_new

请注意，您必须添加正确的错误处理 - 例如，如果用户要求修改列表中没有的'Xavier'，您将获得ValueError。

Answer 2

这个怎么样？

elif(useMenu == "3"):

    oldName = input("What student would you like to edit? ")

    if oldName in Students:

        index = Students.index(oldName)
        newName = input("What is the student's new name? ")
        Students[index] = newName
        time.sleep(1)
        print(str(oldName) + " has been edited to " + str(newName))
        time.sleep(1)

    else: 

       print('Student' + oldName + 'not found!')

    print(Students)

带输出：

1. Add Student
2. Delete Student
3. Edit Student
4. Show All Students
What shall you do? '3'
What student would you like to edit? 'Mary'
What is the student's new name? 'Marry'
Mary has been edited to Marry
['Marry', 'Matthew', 'Mark', 'LianneSpencerJohn', 'Logan', 'Sam', 'Judy', 'Jc', 'Aj']

使用Python编辑条目列表

2 个答案: