在循环Python中更新字典[重复]

Question

我在 python 中创建 dict 数据类型的记录。如何像在tuples 中那样使用while 循环在dict 中添加新项目：

 tuple += (rec)

当我使用此代码时，无论添加多少，它都会在tuple 中添加元素。如何使用dict 执行相同的任务

while True:
    name = input('Student Name: ')
    while True:
        course = input('Course Name: ')
        courses.append(course)
        print('You have entered', len(courses), 'course(s)')
        ch_course = input('Would you like to add a new course [Y]or[N]: ')
        if ch_course == 'y' or ch_course == 'Y':
            continue
        else:
            stdrec = ({name : courses})
            break
    ch_name = input('Would you like to add a new record [Y]or[N]: ')
    if ch_name == 'n' or ch_name == 'N':
        print(stdrec)
        break

Answer 1

要添加到名为stdrecs 的dict，您将存储一个新的键/值对，即stdrecs[name] = courses。这看起来像：

stdrecs = {}    
while True:
    name = input('Student Name: ')
    courses = []
    while True:
        course = input('Course Name: ')
        courses.append(course)
        print('You have entered', len(courses), 'course(s)')
        ch_course = input('Would you like to add a new course [Y]or[N]: ')
        if ch_course.upper() == 'Y':
            continue
        else:
            stdrecs[name] = courses
            break
    ch_name = input('Would you like to add a new record [Y]or[N]: ')
    if ch_name.upper() == 'N':
        print(stdrecs)
        break