Python中的迴文代碼

Question

fno = input() 
myList = list(fno) 
sum = 0 
for i in range(len(fno)): 
    if myList[0:] == myList[:0]: 
    continue 
print (myList) 

我想做一個數字迴文。 如：

input(123) 
print(You are wrong) 
input(12121) 
print(you are right) 

請指導我如何在python.Its迴文不完整的代碼，請建議我下一步是什麼。

感謝

Answer 1

切片符號這裏是有用的：

>>> "malayalam"[::-1] 
'malayalam' 
>>> "hello"[::-1] 
'olleh' 

一個好的1.產品見Explain Python's slice notation離子。

Answer 2

我想，給你的代碼，你要檢查迴文，不會讓一個。

有一些與你的代碼的問題，但在短期，也可以降低到

word = input() 
if word == "".join(reversed(word)): 
    print("Palidrome") 

讓我們來談談你的代碼，這並沒有太大的意義：

fno = input() 
myList = list(fno) #fno will be a string, which is already a sequence, there is no need to make a list. 
sum = 0 #This goes unused. What is it for? 
for i in range(len(fno)): #You should never loop over a range of a length, just loop over the object itself. 
    if myList[0:] == myList[:0]: #This checks if the slice from beginning to the end is equal to the slice from the beginning to the beginning (nothing) - this will only be true for an empty string. 
     continue #And then it does nothing anyway. (I am presuming this was meant to be indented) 
print (myList) #This will print the list of the characters from the string. 

Answer 3

x=raw_input("enter the string") 
while True: 
    if x[0: ]==x[::-1]: 
     print 'string is palindrome' 
     break 
    else: 
     print 'string is not palindrome' 
     break 

Answer 4

str=input('Enter a String') 
print('Original string is : ',str) 
rev=str[::-1] 
print('the reversed string is : ',rev) 
if(str==rev): 
    print('its palindrome') 
else: 
    print('its not palindrome')