在 python 中生成以下输出（for 和 while 循环）？

Question

I have an assignment about for and while loops and I am just confused with some stuff. It would be much appreciated if you guys can help me.

The question is produce the following out using for and while loops in python:

1
FredFredFredFred
2
FredFredFred
3
FredFred
4
Fred

this is what I have so far for a "for loop"

for i in range(1,5):
    print(i)
    print('Fred'*i)

but I can't get the 'Fred' to be like what they asked us for.

Answer 1

Printing Fred one lest time each iteration can be controlled by multiplying the string by a decreasing value (in this case, 5-i ).

for i in range(1,5):
     print(i)
     print("Fred"*(5-i))

This outputs:

1
FredFredFredFred
2
FredFredFred
3
FredFred
4
Fred

Answer 2

Using While loop

i = 1
while (i < 5):
   print(i)
   print('fred'*(5-i))
   i = i + 1

Output:

1
fredfredfredfred
2
fredfredfred
3
fredfred
4
fred