python - 如何在 Python 中的某个点重新启动程序

Question

所以我今天做了一个很原始而且效率可能很低的计算器(第一次使用Python)，我希望能够继续做更多的问题，我会怎么做呢？这是我的“计算器”应用..

import time
print ("Welcome. This is a calculator that uses the function: A (operator) B.")
time.sleep(3.5)
print ("Available operators include: Addition, Subtraction, Multiplication, Division,        Exponent, and Remainder division.")
time.sleep(3.5)
a = float(input("Type in a value of A. "))
b = float(input("Type in a value of B. "))
operb = input("Would you like to: Add - Subtract - Multiply - Divide - Exponent - or Remainder? ")
opera = operb.lower()
if (opera) == "add":
    print ((a) + (b))
elif (opera) == "subtract":
    print ((a) - (b))
elif (opera) == "multiply":
    print ((a) * (b))
elif (opera) == "divide":
    print ((a) / (b))
elif (opera) == "exponent":
    print ((a) ** (b))
elif (opera) == "remainder":
    print ((a) % (b))
else:
    print ("Invalid operation.")
cont = input("Would you like to do another problem?")
cont = cont.lower()
if (cont) == "yes":
    ??
else:
    quit

我希望它在“输入值 A”处重新启动。部分，但我不确定该怎么做。

Answer 1

执行此操作的最佳方法可能是使用 while 循环。

while True:
    ## your code
    if cont != "yes":
        break
## quit