我如何在不使用函数的情况下在python中打印名称的相反名称？

Question

Suppose i have enter a input john doe garry and i want to print garry doe john

I have attempted this many times:

for x in range(0,l-1):
    first  = first+' '+li[i][0]
    i-=1
first=li[l-1]+' '+first
print(first)

but it's not getting me output as I expected

Answer 1

You can try the following: split the input, reverse the tokens using the [::-1] slice, and join them back together.

input = 'john doe garry'
rev = ' '.join(input.split()[::-1])
print(rev)
# garry doe john

Answer 2

Hi mannish it's look like little bit improvement in your code

na = input('enter your name ')
li=na.split()
li = na.split()
l=len(li)
i=0

for x in range(0,l):
   first=first+' '+li[i-1]
   k-=1
first=first
print(first)

if your input is john doe garry then output is.

garry doe john i hope its working for you Thanks.

Answer 3

If you just want to print :

first = input()
for i in first.split()[::-1]:
    print(i, end=' ')

 doegarryjohn(xenial)vash@localhost:~/python/stack_overflow$ python3.7 reverse.py john garry doe doe garry john 

If you would like to store it as a variable:

first = input()
f_reverse = ''
for i in first.split()[::-1]:
        f_reverse += (i + ' ')

print(f_reverse)