python3-input()的数据类型 [英] python3 - data type of input()

问题描述

我需要将一个用户提供的整数值分配给一个对象.我的格式如下:

I need to assign a user-provided integer value to an object. My format is as follows:

object = input("Please enter an integer")

以下打印测试...

print(type(object))
print(object)

...返回< class'str'> 和'1'.有没有一种方法可以将对象"的数据类型设置为用户输入值的数据类型?IOW，如果object = 1，则type(object)= int?我知道我可以使用以下命令将输入​​的数据类型设置为int:

...return <class 'str'> and '1'. Is there a way to set the data type of 'object' to the data type of the user's input value? IOW, such that if object=1, type(object)=int? I know I can set the data type of an input to int using the following:

object = int(input("Please enter an integer"))

在这种情况下，如果用户不提供int，则控制台将引发回溯错误，并且程序将崩溃.我更愿意测试对象是否实际上是一个int值.如果不是，请使用我的程序打印一条错误语句并递归抛出前一个提示.

In this case, if the user does not provide an int, the console throws a traceback error and the program crashes. I would prefer to test whether the object is in fact an int; if not, use my program to print an error statement and recursively throw the previous prompt.

推荐答案

while True:
 try:
  object = int(input("Please enter an integer"))
  break
 except ValueError:
  print("Invalid input.  Please try again")
print(type(object))
print(object)

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