Day 10 - Function with output & Calculator


Posted by pei_______ on 2022-04-20

learning from 100 Days of Code: The Complete Python Pro Bootcamp for 2022


# Format name

def format_name(f_name,l_name):
  """Take a first and last name and format it 
  to return the title case version of the name."""

  if f_name == "" or l_name == "":
    return "You didn't provide a valid inputs."
    ## 只要遇到return就會強制結束函式

  format_f_name = f_name.title()
  format_l_name = l_name.title()
  return f"{format_f_name} {format_l_name}"

print(format_name("PENNY","lee"))

# Days in Month

def is_leap(year):
  if year % 4 == 0:
    if year % 100 == 0:
      if year % 400 == 0:
        return True
      else:
        return False
    else:
      return True
  else:
    return False

def days_in_month(year, month):
  month_days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]  
  if is_leap(year) and month ==2:
    return 29
  else :
    return month_days[month - 1]

year = int(input("Enter a year: "))
month = int(input("Enter a month: "))
days = days_in_month(year, month)
print(days)

# calculator

from replit import clear
from art import logo

def add(n1,n2):
  return n1 + n2

def subtract(n1,n2):
  return n1 - n2

def multiply(n1,n2):
  return n1 * n2

def divide(n1,n2):
  return n1 / n2

operations ={
  "+" : add,
  "-" : subtract,
  "*" : multiply,
  "/" : divide,
}


def calculator():
  print(logo)
  num1 = float(input("What's the first number?: "))
  continue_calculate = True

  for symbol in operations:
    print (symbol)

  while continue_calculate:
    operations_symbol = input("Pick an operation: ")
    num2 = float(input("What's the next number?: "))
    calculator_function = operations[operations_symbol]
    answer = calculator_function(num1,num2)

    print(f"{num1} {operations_symbol} {num2} = {answer}")
    num1 = answer

    if input(f"Type 'y' to continue calculating with {answer}, or type'n' to exit: ") == "n":
      continue_calculate = False
      clear()
      calculator()

calculator()

#Python #課堂筆記 #100 Days of Code







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