1 s = "Hello" 2 s += " world!" 3 print s # Hello world! 4 5 s2 = "Hello worlds!" 6 print s2 # Hello worlds! 7 print s < s2 # True 8 print s <= s2 # True 9 print s == s2 # False 10 print s != s2 # True 11 print s >= s2 # False 12 print s > s2 # False 13 14 print s[0] # H 15 print s[-1] # ! 16 17 print ord(s[0]) # 72 18 19 try: 20 print ord(s) # should raise an exception 21 except ValueError, exc: 22 print "ord(s): value is not appropriate", exc.value 23 24 l = ["Hello", "world!"] 25 s3 = " ".join(l) 26 print s3 # Hello world! 27 28 s4 = "".join(l) 29 print s4 # Helloworld! 30 31 print hash(s) 32 print hash(s2) 33 print hash(s3) 34 print hash(s4)
