133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
def main():
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print("Welcome to the Calculator")
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command = input("Select command: [ + ] [ - ] [ * ] [ / ] \nType exit if u want exit \n")
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match command: #выбор команд
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case "+":
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summ()
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case "*":
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multiplication()
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case "-":
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minus()
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case "/":
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division()
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case "exit":
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exit
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case _:
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print(KeyError("Incorrect"))
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main()
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def summ(total=None):
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print("Enter number(s) to summ, enter spase to finish calculating")
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if total is None:
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try:
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total = float(input("Enter First number \n"))
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except ValueError:
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print("Enter a valid number")
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return
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while True:
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num_input = input("Enter numbers to summ\n")
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if num_input == " " or num_input == "":
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print(total)
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main()
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if num_input in ["+", "-", "*", "/"]:
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if num_input == "+":
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return summ(total)
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elif num_input == "-":
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return minus(total)
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elif num_input == "*":
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return multiplication(total)
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elif num_input == "/":
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return division(total)
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try:
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number = float(num_input)
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total += number
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print(f"Total summ = {total}")
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except ValueError:
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print("Error, enter correct number")
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def minus(total=None):
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print("Enter number(s) to summ, enter spase to finish calculating")
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if total is None:
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try:
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total = float(input("Enter First number \n"))
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except ValueError:
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print("Enter a valid number")
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return
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while True:
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num_input = input("Enter numbers to minus\n")
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if num_input == " " or num_input == "":
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print(total)
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main()
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if num_input in ["+", "-", "*", "/"]:
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if num_input == "+":
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return summ(total)
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elif num_input == "-":
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return minus(total)
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elif num_input == "*":
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return multiplication(total)
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elif num_input == "/":
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return division(total)
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try:
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number = float(num_input)
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total -= number
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print(f"Total minus = {total}")
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except ValueError:
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print("Error, enter correct number")
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def multiplication(total=None):
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print("Enter number(s) to multuplicate, enter spase to finish calculating")
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print("Enter number(s) to summ, enter spase to finish calculating")
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if total is None:
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try:
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total = float(input("Enter First number \n"))
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except ValueError:
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print("Enter a valid number")
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return
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while True:
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num_input = input("Enter numbers to multiplicate\n")
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if num_input == " " or num_input == "":
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print(total)
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main()
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if num_input in ["+", "-", "*", "/"]:
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if num_input == "+":
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return summ(total)
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elif num_input == "-":
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return minus(total)
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elif num_input == "*":
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return multiplication(total)
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elif num_input == "/":
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return division(total)
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try:
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number = float(num_input)
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total *= number
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print(f"Total multiplication = {total}")
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except ValueError:
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print("Error, enter correct number")
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def division(total=None):
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print("Enter number(s) to summ, enter spase to finish calculating")
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if total is None:
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try:
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total = float(input("Enter First number \n"))
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except ValueError:
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print("Enter a valid number")
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return
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while True:
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num_input = input("Enter numbers to division\n")
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if num_input == " " or num_input == "":
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print(total)
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main()
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if num_input in ["+", "-", "*", "/"]:
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if num_input == "+":
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return summ(total)
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elif num_input == "-":
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return minus(total)
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elif num_input == "*":
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return multiplication(total)
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elif num_input == "/":
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return division(total)
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try:
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number = float(num_input)
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total /= number
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print(f"Total division = {total}")
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except ValueError:
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print("Error, enter correct number")
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if __name__ == "__main__":
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main() #запуск функции main, основа программы |