Practice 1 - PowerPoint Presentation

Slide1

Practice 1

Write a program that gets text from the user. Count the number of uppercase letters and print this out.

Ex: “Hi There!” -> “2 uppercase letters”Slide2

Solution 1

text =

raw_input

("Please enter some text: ")

upper_count

= 0

for

i

in range(0,

len

(text), 1):

if

text[i].lower

() !=

text[i

]:

# if

text[i].upper

() ==

text[i

]:

upper_count

+= 1

p

rint "I found",

upper_count

, "upper case letters. "Slide3

Solution 2

text =

raw_input

("Please enter some text: ")

upper_count

= 0

for letter in text:

if letter >=

'

A

'

and letter <=

'

Z

'

:

upper_count

+= 1

print "I found",

upper_count

, "upper case letters. "Slide4

Compare solution 1 & 2

for

i

in range(0,

len

(text), 1):

if text[

i

].lower() != text[

i

]:

upper_count

+= 1

for letter in text:

if letter >=

'

A

'

and letter <=

'

Z

'

:

upper_count

+= 1Slide5

Practice 2

“The farm” book

The Farm by Mary Fried

Here is the pig. oink-oink

Here is the cow. moo-moo

Here is the horse. nee-nee

Here is the farm.

Diaosaurs

by

Nanet

George

I see two dinosaurs.

I see four dinosaurs.

I see six dinosaurs.

I see eight dinosaurs.

I see ten dinosaurs.

A dinosaur family!Slide6

Solution 1 (using ONE list)

animals = (("pig", "oink-oink"), ("cow", "moo-moo"), ("horse", "nee-nee"))

#animals = [["pig", "oink-oink"], ["cow", "moo-moo"], ["horse", "nee-nee"]

]

#using a nested sequence

for animal in animals:

print "Here is the", animal[0] + ". " + animal[1

] +

".

”

p

rint

"

Here is the farm."Slide7

Solution 2 (using TWO lists)

print "The

Fram

by Mary Fried"

animals = ("pig", "cow", "horse")

sounds = ("oink-oink", "moo-moo", "nee-nee"

)

for

idx

in range(

len

(animals)):

print "Here is the " + animals[

idx

] + ". " + sounds[

idx

] + "."

print "Here is the farm."Slide8

What do you get?

print "The

Fram

by Mary Fried"

animals = ("pig", "cow", "horse")

sounds = ("oink-oink", "moo-moo", "nee-nee")

for

animal in animals:

for sound in sounds:

print "Here is the " + animal + ". " + sound + "."

print "Here is the farm."