[초보 300제] 파이썬 클래스(251~290) 풀이

초보자를 위한 파이썬 300제 (251~260)

위키독스

 

#251
'''
1. 클래스: 객체를 만들어 내기 위한 설계도 혹은 틀
2. 객체: 소프트웨어 세계에 구현할 대상
3. 인스턴스: 설계도를 바탕으로 소프트웨어 세계에 구현된 구체적인 실체
'''
 
#252
class Human:
    pass
 
#253
class Human:
    pass
 
areum = Human()
 
#254
class Human:
    def __init__(self):
        print("응애응애")
 
areum = Human()
 
#255
class Human:
    def __init__(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
areum = Human("아름", 25, "여자")
print(areum.name, areum.age, areum.sex)
 
#256
class Human:
    def __init__(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
areum = Human("아름", 25, "여자")
print(f"이름: {areum.name}, 나이: {areum.age}, 성별: {areum.sex}")
 
#257
class Human:
    def __init__(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
 
    def who(self):
        print(f"이름: {areum.name}, 나이: {areum.age}, 성별: {areum.sex}")
 
areum = Human("아름", 25, "여자")
areum.who()
 
#258
class Human:
    def __init__(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
 
    def who(self):
        print(f"이름: {areum.name}, 나이: {areum.age}, 성별: {areum.sex}")
 
    def setInfo(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
 
 
areum = Human("불명", "미상", "모름")
areum.who()
 
areum.setInfo("아름", 25, "여자")
areum.who()
 
 
#259
class Human:
    def __init__(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
 
    def __del__(self):
        print("나의 죽음을 알리지마라")
 
    def who(self):
        print(f"이름: {areum.name}, 나이: {areum.age}, 성별: {areum.sex}")
 
    def setInfo(self, name, age, sex):
        self.name = name
        self.age = age
        self.sex = sex
 
areum = Human("아름", 25, "여자")
del(areum)
 
 
#260 오류내용: print()는 인자를 받지 않는데 1개가 들어갔다. 따라서 def print(a)라고 a 등 아무 문자열을 넣어주면 된다.
class OMG :
    def print(a) :
        print("Oh my god")
 
 
mystock = OMG()
mystock.print()

 

 

초보자를 위한 파이썬 300제 (261~270)

위키독스

 

#261
class Stock:
    pass
 
#262
class Stock:
    def __init__(self, name, code):
        self.name = name
        self.code = code
 
삼성 = Stock("삼성전자", "005930")
print(삼성.name)
print(삼성.code)
 
#263
class Stock:
    def __init__(self, name, code):
        self.name = name
        self.code = code
 
    def set_name(self, name):
        self.name = name
 
a = Stock(None, None)
a.set_name("삼성전자")
print(a.name)
 
#264
class Stock:
    def __init__(self, name, code):
        self.name = name
        self.code = code
 
    def set_name(self, name):
        self.name = name
 
    def set_code(self, code):
        self.code = code
 
a = Stock(None, None)
a.set_code("005930")
print(a.code)
 
#265
class Stock:
    def __init__(self, name, code):
        self.name = name
        self.code = code
 
    def set_name(self, name):
        self.name = name
 
    def set_code(self, code):
        self.code = code
 
    def get_name(self):
        return self.name
 
    def get_code(self):
        return self.code
 
삼성 = Stock("삼성전자", "005930")
print(삼성.name)
print(삼성.code)
print(삼성.get_name())
print(삼성.get_code())
 
#266
class Stock:
    def __init__(self, name, code, per, pbr, 배당수익률):
        self.name = name
        self.code = code
        self.per = per
        self.pbr = pbr
        self.배당수익률 = 배당수익률
 
    def set_name(self, name):
        self.name = name
 
    def set_code(self, code):
        self.code = code
 
    def get_name(self):
        return self.name
 
    def get_code(self):
        return self.code
 
#267
삼성 = Stock("삼성전자", "005930", 15.79, 1.33, 2.83)
print(삼성.배당수익률)
 
#268
class Stock:
    def __init__(self, name, code, per, pbr, dividend):
        self.name = name
        self.code = code
        self.per = per
        self.pbr = pbr
        self.dividend = dividend
 
    def set_name(self, name):
        self.name = name
 
    def set_code(self, code):
        self.code = code
 
    def get_name(self):
        return self.name
 
    def get_code(self):
        return self.code
 
    def set_per(self, per):
        self.per = per
 
    def set_pbr(self, pbr):
        self.pbr = pbr
 
    def set_dividend(self, dividend):
        self.dividend = dividend
 
#269
삼성 = Stock("삼성전자", "005930", 15.79, 1.33, 2.83)
삼성.set_per(12.75)
print(삼성.per)
 
#270
종목 = []
 
삼성 = Stock("삼성전자", "005930", 15.79, 1.33, 2.83)
현대차 = Stock("현대차", "005380", 8.70, 0.35, 4.27)
LG전자 = Stock("LG전자", "066570", 317.34, 0.69, 1.37)
 
종목.append(삼성)
종목.append(현대차)
종목.append(LG전자)
 
for i in 종목:
    print(i.code, i.per)

 

 

초보자를 위한 파이썬 300제 (271~280)

위키독스

 

#271
import random
class Account:
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3)    # padding(문자열 채우기)
        num2 = str(num2).zfill(2)     
        num3 = str(num3).zfill(6)      
        self.account_number = num1 + '-' + num2 + '-' + num3 
kim = Account("김민수", 100)
print(kim.name)
print(kim.balance)
print(kim.bank)
print(kim.account_number)
 
#272
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3)  
        num2 = str(num2).zfill(2)
        num3 = str(num3).zfill(6) 
        self.account_number = num1 + '-' + num2 + '-' + num3
        Account.account_count += 1
kim = Account("김민수", 100)
print(Account.account_count)
lee = Account("이민수", 100)
print(Account.account_count)
 
#273
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3)   
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6) 
        self.account_number = num1 + '-' + num2 + '-' + num3
        Account.account_count +=1
    def get_account_num(cls):
        print(cls.account_count)
kim = Account("김민수", 100)
lee = Account("이민수", 100)
kim.get_account_num()
 
#274
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3)   
        num2 = str(num2).zfill(2)   
        num3 = str(num3).zfill(6)    
        self.account_number = num1 + '-' + num2 + '-' + num3
        Account.account_count +=1
    def get_account_num(cls):
        print(cls.account_count)  
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
 
#275
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3) 
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6)  
        self.account_number = num1 + '-' + num2 + '-' + num3  
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count)  
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
    def withdraw(self, amount):
        if self.balance > amount:
            self.balance -= amount
k = Account("kim", 100)
k.deposit(100)
k.withdraw(90)
print(k.balance)
 
#276
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3) 
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6)  
        self.account_number = num1 + '-' + num2 + '-' + num3 
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count)  
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
    def withdraw(self, amount):
        if self.balance > amount:
            self.balance -= amount
    def display_info(self):
        print("은행이름: ", self.bank)
        print("예금주: ", self.name)
        print("계좌번호: ", self.account_number)
        print("잔고: ", self.balance)
p = Account("파이썬", 10000)
p.display_info()
 
#277
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.deposit_count = 0
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3) 
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6)  
        self.account_number = num1 + '-' + num2 + '-' + num3 
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count) 
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
            self.deposit_count += 1
            if self.deposit_count % 5 == 0:         
                self.balance = (self.balance * 1.01)
    def withdraw(self, amount):
        if self.balance > amount:
            self.balance -= amount
    def display_info(self):
        print("은행이름: ", self.bank)
        print("예금주: ", self.name)
        print("계좌번호: ", self.account_number)
        print("잔고: ", self.balance)
p = Account("파이썬", 10000)
p.deposit(10000)
p.deposit(10000)
p.deposit(10000)
p.deposit(5000)
p.deposit(5000)
print(p.balance)
 
#278
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.deposit_count = 0
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3) 
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6)  
        self.account_number = num1 + '-' + num2 + '-' + num3  
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count)  
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
            self.deposit_count += 1
            if self.deposit_count % 5 == 0:      
                self.balance = (self.balance * 1.01)
    def withdraw(self, amount):
        if self.balance > amount:
            self.balance -= amount
    def display_info(self):
        print("은행이름: ", self.bank)
        print("예금주: ", self.name)
        print("계좌번호: ", self.account_number)
        print("잔고: ", self.balance)
data = []
k = Account("KIM", 10000000)
l = Account("LEE", 10000)
p = Account("PARK", 10000)
data.append(k)
data.append(l)
data.append(p)
print(data)
 
#279
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.deposit_count = 0
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        # 3-2-6
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3) 
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6)  
        self.account_number = num1 + '-' + num2 + '-' + num3 
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count) 
    def deposit(self, amount):
        if amount >= 1:
            self.balance += amount
            self.deposit_count += 1
            if self.deposit_count % 5 == 0: 
                self.balance = (self.balance * 1.01)
    def withdraw(self, amount):
        if self.balance > amount:
            self.balance -= amount
    def display_info(self):
        print("은행이름: ", self.bank)
        print("예금주: ", self.name)
        print("계좌번호: ", self.account_number)
        print("잔고: ", self.balance)
data = []
k = Account("KIM", 10000000)
l = Account("LEE", 10000)
p = Account("PARK", 10000)
data.append(k)
data.append(l)
data.append(p)
for c in data:
    if c.balance >= 1000000:
        c.display_info()
 
#280
import random
class Account:
    account_count = 0
    def __init__(self, name, balance):
        self.deposit_count = 0
        self.deposit_log = []
        self.withdraw_log = []
        self.name = name
        self.balance = balance
        self.bank = "SC은행"
        num1 = random.randint(0, 999)
        num2 = random.randint(0, 99)
        num3 = random.randint(0, 999999)
        num1 = str(num1).zfill(3)  
        num2 = str(num2).zfill(2)  
        num3 = str(num3).zfill(6) 
        self.account_number = num1 + '-' + num2 + '-' + num3  
        Account.account_count += 1
    def get_account_num(cls):
        print(cls.account_count)  
    def deposit(self, amount):
        if amount >= 1:
            self.deposit_log.append(amount)
            self.balance += amount
            self.deposit_count += 1
            if self.deposit_count % 5 == 0:  
                self.balance = (self.balance * 1.01)
    def withdraw(self, amount):
        if self.balance > amount:
            self.withdraw_log.append(amount)
            self.balance -= amount
    def display_info(self):
        print("은행이름: ", self.bank)
        print("예금주: ", self.name)
        print("계좌번호: ", self.account_number)
        print("잔고: ", self.balance)
    def withdraw_history(self):
        for amount in self.withdraw_log:
            print(amount)
    def deposit_history(self):
        for amount in self.deposit_log:
            print(amount)
k = Account("Kim", 1000)
k.deposit(100)
k.deposit(200)
k.deposit(300)
k.deposit_history()
k.withdraw(100)
k.withdraw(200)
k.withdraw_history()

 

 

초보자를 위한 파이썬 300제 (281~290)

위키독스

 

 

#281
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
car = 차(2, 1000)
print(car.바퀴)
print(car.가격)
 
#282
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
 
class 자전차(차):
    pass
 
#283
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
 
class 자전차(차):
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
 
bicycle = 자전차(2, 100)
print(bicycle.가격)
 
#284
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
 
class 자전차(차):
    def __init__(self, 바퀴, 가격, 구동계):
        super().__init__(바퀴, 가격)
        #차.__init__(self, 바퀴, 가격)
        self.구동계 = 구동계
 
 
bicycle = 자전차(2, 100, "시마노")
print(bicycle.구동계)
print(bicycle.바퀴)
 
#285
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
 
class 자동차(차):
    def __init__(self, 바퀴, 가격):
        super().__init__(바퀴, 가격)
 
    def 정보(self):
        print("바퀴수 ", self.바퀴)
        print("가격 ", self.가격)
 
 
car = 자동차(4, 1000)
car.정보()
 
 
#286
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
    def 정보(self):
        print("바퀴수 ", self.바퀴)
        print("가격 ", self.가격)
 
class 자동차(차):
    def __init__(self, 바퀴, 가격):
        super().__init__(바퀴, 가격)
 
class 자전차(차):
    def __init__(self, 바퀴, 가격, 구동계):
        super().__init__(바퀴, 가격)
        self.구동계 = 구동계
 
bicycle = 자전차(2, 100, "시마노")
bicycle.정보()
 
#287
class 차:
    def __init__(self, 바퀴, 가격):
        self.바퀴 = 바퀴
        self.가격 = 가격
 
    def 정보(self):
        print("바퀴수 ", self.바퀴)
        print("가격 ", self.가격)
 
class 자동차(차):
    def __init__(self, 바퀴, 가격):
        super().__init__(바퀴, 가격)
 
class 자전차(차):
    def __init__(self, 바퀴, 가격, 구동계):
        super().__init__(바퀴, 가격)
        self.구동계 = 구동계
 
    def 정보(self):
        super().정보()
        print("구동계 ", self.구동계)
 
bicycle = 자전차(2, 100, "시마노")
bicycle.정보()
 
#288
class 부모:
    def 호출(self):
        print("부모호출")
 
class 자식(부모):
    def 호출(self):
        print("자식호출")
 
 
나 = 자식()
나.호출()
 
#289
class 부모:
    def __init__(self):
        print("부모생성")
 
class 자식(부모):
    def __init__(self):
        print("자식생성")
 
나 = 자식()
 
#290
class 부모:
    def __init__(self):
        print("부모생성")
 
class 자식(부모):
    def __init__(self):
        print("자식생성")
        super().__init__()
 
나 = 자식()