I can understand how to use the while loop perfectly if just to compare it with one thing, for example:
x=int(input("Guess my number 1-10"))
while x!=7:
print("Wrong!")
x=int(input("Try again: "))
print("Correct it is 7. ")
However, if I want to compare two or more values through while loops (especially if I want to validate something), I would do something like this:
number=input("Would you like to eat 1. cake 2. chocolate 3. sweets: ")
while number!= "1" or number != "2" or number != "3":
number=input("Please input a choice [1,2,3]")
#Some code...
When number
does equal 1, 2 or 3, the program should proceed... but it doesn't, no matter what value I input, the program will be stuck at an infinite loop at line 2-3. I have also tried while number != "1" or "2" or "3"
and the same infinite loops also occurs. When I try replacing all or
with and
, the while loop will only break when number
equals the first value compared (which in this case is "1"
).
Is there any way that I can resolve this?
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