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Step by Step Learn Python(1)

print "Hello World!"
 
action = raw_input("please select your action{1, 2, 3, 4, 5, 6, 7, 8, 9, o}: ")
print action
 
if action == str("1"):  #print hello name
    name = raw_input("what's your name?  ")
    print "Hello "+name
elif action == str("2"): #print hu and chongshi
    hu =["hu", 25]
    chongshi=["chongshi", 32]
    database = [hu, chongshi]
    print database
elif action == "3":
    greeting = "chongshi" #print c
    print greeting[0]
elif action == "4":
    fourth = raw_input("year:")[3] #year:2013 print 3
    print fourth
elif action == "5":
    tag = '<a href="http://www.python.org">Python web site</a>'
    print tag[9:30]
    print tag[32:-4]
elif action == "6":
    permissions = "rw"
    print "w" in permissions
     
    users = ["hls", "lisi"]
    r = raw_input("enter you user name:") in users #return true or false check input value is not at users
    print r
elif action == "7":
    numbers = [100, 34, 678]
    print "max(numbers) "+ str(max(numbers)) #get max value for numbers
 
    print "min(numbers) "+ str(min(numbers)) #get min value for numbers
elif action == "8":
    lis = list('chongshi')
 
    x = [1,3,4]
    x[1] = 2
    print x  #update item value
 
    del x[1]  #delete a item
    print x
 
    x[1:] = list("111v123") #append a list at index 1 of x
    print x
 
    print 'there have '+str(x.count("1"))+' "1"' #get contains "1" of list x's value
 
    y = [4,5,6,7,8]
    x.extend(y) #extend y to x
    print x
 
 
    print x.index("1") #get index for "1"
 
    x.insert(5, "5.5") #insert a value at index 5 later
    print x
 
    x.pop() #delete a last item
    print x
 
    x.pop(1) #delete index 1's value
    print x 
 
    x.remove() #delete a first item
    print x
 
    x.reverse() #reverse items
    print x
 
    x.sort()
    print x
elif action == "9": #tuple
    z = 1,2,3
    print z
 
    z = tuple("12346abc")
    print z
 
else:
    print '''this is a  very long string.
        It continues here.
        and it's not over yet.'''