add exercise 6

flyhigher139 · flyhigher139 · commit 9fdd63c31eed · 2015-10-07T10:40:28.000+08:00
diff --git a/exercises_6.py b/exercises_6.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+'''
+Ask the user for a string and print out whether this string is a palindrome or not. 
+(A palindrome is a string that reads the same forwards and backwards.)
+'''
+
+word = raw_input('Please input a string for check: ')
+
+# Method 1:
+reverse_word = word[::-1]
+
+if word == reverse_word:
+    print 'The word you input is a palindrome'
+else:
+    print 'The word you input is not a palindrome'
+
+# Method 2:
+is_palindrome = True
+length = len(word)
+for i in xrange(0, length/2):
+    if word[i] != word[length-1-i]:
+        is_palindrome = False
+        break
+
+if is_palindrome:
+    print 'The word you input is a palindrome'
+else:
+    print 'The word you input is not a palindrome'
