Python学习1

my_name = 'Zed A. Shaw'
my_age = 35 # not a lie
my_height = 74 # inches
my_weight = 180 # lbs
my_eyes = 'Blue'
my_teeth = 'White'
my_hair = 'Brown'

print "Let's talk about %s." % my_name
print "He's %d inches tall." % my_height
print "He's %d pounds heavy." % my_weight
print "Actually that's not too heavy."
print "He's got %s eyes and %s hair." % (my_eyes, my_hair)
print "His teeth are usually %s depending on the coffee." % my_teeth

# this line is tricky, try to get it exactly right
print "If I add %d, %d, and %d I get %d." % (
    my_age, my_height, my_weight, my_age + my_height + my_weight)

# Sample 1
my_name = "Panda Yu"
my_age = 32 # not a lie
out_string = "let's talk about {0}, my age is {1}".format(my_name, my_age)
print(out_string)

# Sample 2
int_count = 30
float_num = 2323.443
out_string = "|{0:20d}|{0:>20d}|{1:.3f}|{1:20f}|".format(int_count, float_num)
print(out_string)

out_string = "|{0:20d}|{0:<20d}|{1:.3f}|{1:20f}|".format(int_count, float_num)
print(out_string)

# Sample 3
print('This {food} is {adjective}.'.format(food='spam', adjective='absolutely horrible'))
print("abc {:s}".format("gagaag"))

# Sample 4
x = "There are %d types of people." % 10
y = "Hello world"
print("I said: %r." % x)
print("I also said: '%s'." % y)
print("%d %s %f" %(10, "hello", 34))
# What is the difference between %r and %s?
# We use %r for debugging, since it displays the “raw” data of the variable, but we use %s and
# others for displaying to users.

# Sample 5
hilarious = False
joke_evaluation = "Isn't that joke so funny?! %r"
print(joke_evaluation % hilarious)
print('.' * 10)

# Sample 6
formatter = "%r %r %r %r"

print(formatter % (1, 2, 3, 4))
print(formatter % ("one", "two", "three", "four"))
print(formatter % (True, False, False, True))
print(formatter % (formatter, formatter, formatter, formatter))
print(formatter % (
    "I had this thing.",
    "That you could type up right.",
    "But it didn't sing.",
    "So I said goodnight."
    ))

days = "Mon Tue Wed Thu Fri Sat Sun"
months = "Jan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"

print("Here are the days: ", days)
print("Here are the months: ", months)

print("""
There's something going on here.
With the three double- quotes.
We'll be able to type as much as we like.
Even 4 lines if we want, or 5, or 6.
""")

# Output
# Here are the days:  Mon Tue Wed Thu Fri Sat Sun
# Here are the months:  Jan
# Feb
# Mar
# Apr
# May
# Jun
# Jul
# Aug

# There's something going on here.
# With the three double- quotes.
# We'll be able to type as much as we like.
# Even 4 lines if we want, or 5, or 6