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当我运行下面的代码时,出现以下错误:eval()arg 1必须是字符串或代码对象必须是一个字符串或代码对象吗?
任何人都知道为什么?这是我从书中学到的代码,所以我认为这是正确的。
# Prompt the user to enter three numbers
number1 = eval(input("Enter the first number: "))
number2 = eval(input("Enter the second number: "))
number3 = eval(input("Enter the third number: "))
# Compute average
average = (number1 + number2 + number3)/3
print("The average of", number1, number2, number3, "is", average)