day03

def select():
    print(‘select功能‘)
def delete():
    print(‘delete功能‘)
def insert():
    print(‘insert功能‘)
def updata():
    print(‘updata功能‘)

dic = {
    ‘select‘:‘select‘,
    ‘delete‘:‘delete‘,
    ‘insert‘:‘insert‘,
    ‘updata‘:‘updata‘
}

def main ():
    while True:
        inp=input(‘>>‘).strip()
        if not inp:continue
        for i in dic:
            if inp in i:
                inp()
        # if inp == ‘select‘:
        #     select()
        # elif inp ==‘delete‘:
        #     delete()
        # elif inp ==‘insert‘:
        #     insert()
        # elif inp == ‘updata‘:
        #     updata()
        # else:
        #     print(‘输入有误.‘)
        #     continue
main()