字典的嵌套

字典中嵌套列表与成员的遍历

auto_brand = {
    "japan":['toyota','honda','suzuki'],
    "germany":['volkswagen','audi','bmw'],
    "USA":['ford','cadillac','chevrolet'],
    "italy":['maserati','ferrari','lamborghini'],
    }
for country_name,brand in auto_brand.items():
    print ("\n"+country_name.title()+' have these auto brands:')
    for name in brand:
        if name == 'bmw':
            print (name.upper())
        else:
            print (name.title())

列表中嵌套字典

all_student_score=[]
for number in range (10):
    if number%2==0:
        subject_score = {"chinese":90,"math":60,"english":55}
        all_student_score.append(subject_score)
    else:
        subject_score = {"chinese":76,"math":45,"english":33}
        all_student_score.insert(number,subject_score)
for motherfucker in all_student_score[:5]:
    if motherfucker['chinese'] == 76:
        motherfucker['math']= 0
        motherfucker['english'] = 0
        motherfucker.update(sb='zx')
        motherfucker['cnm'] = '2bzx'  '''在列表中插入键值'''
        motherfucker.update({'zxwcnm':'zxsds','zxcwd':'zxcjj'}) '''另一种插入方法'''
for members in all_student_score:
    print (members)