Python 不太难，只是在变量方面遇到困难

Question

代码:

loop = 0

def main():
  while loop == 0:
    Num = input("Please Enter The Number Of People That Need The Cocktails ")
    print()
    print(" Type END if you want to end the program ")
    print()
    for count in range (Num):
      with open("Cocktails.txt",mode="w",encoding="utf-8") as myFile:
          print()
          User = input("Please Enter What Cocktails You Would Like ")
          if User == "END":
            print(Num, "Has Been Written To The File ")
            exit()
          else:
            myFile.write(User+"/n")
            myFile.write(Num+"/n")
            print()
            print(User, "Has Been Written To The File ")

错误:

line 9, in main for count in range (Num): TypeError: 'str' object cannot be interpreted as an integer

我试图将变量设置为重复他们想要多少鸡尾酒的次数。

示例:

How many cocktails ?  6 

然后，脚本应要求用户输入他想要的鸡尾酒六次。

Answer 1

在 Python 中，input() 默认返回一个字符串。将 Num 更改为:

Num = int(input("Please Enter The Number Of People That Need The Cocktails ")) 

还有

MyFile.write(Num + "\n")  

应阅读:

MyFile.write(str(Num) + "\n")

仅供记录，您可以替换:

loop = 0
while (loop == 0):

与:

while True: