前言
Python基础学的跟屎一样，重新学习，从今天开始记录我按照《笨办法学Python》的每一次代码和结果。
开始
day1
主要实现几个文字输出
代码：
print("Hello World")
print("Hello Again")
print("I like typing this ")
print("this is fun")
print("I'd much rather you 'not'.")
print('I "said" do not touch this')结果：
day2
注释和#号
代码：
# A comment,this is so you can read your program later
# Anything after the # is ignored by Python.
print("I could have code like this.") # and the comment after is ignored
# you can also use aa comment to "disable" or comment out a piece of code:
# print "This won't run"
print("This will run")结果：
Day3
数字和数学计算
代码：
print("I will now count my chickens:")
print("Hens",25 + 30 / 6)
print("Roosters", 100 - 25 * 3 % 4)
print("Now I will count the eggs:")
print(3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6)
print("Is it true that 3 +2 < 5- 7?")
print(3 + 2 < 5 - 7)
print("what is 3 + 2?",3 + 2)
print("what is 5 - 7?",5 - 7)
print("Oh,that's why it's False")
print("How about some more.")
print("Is it greater?",5 > -2)
print("Is it greater or equal?",5 >= -2)
print("Is it less or equal?", 5<=-2)结果：
Day4
变量和命名
代码：
cars = 100
space_in_a_car = 4.0
drivers = 30
passengers = 90
cars_not_driven = cars - drivers
cars_driven = drivers
carpool_capacity = cars_driven * space_in_a_car
average_passenger_per_car = passengers / cars_driven
print("There are", cars, "cars available")
print("There are only", drivers, "drivers available")
print("There will be", cars_not_driven, "empty cars today")
print("We can transport", carpool_capacity, "people today")
print("We have", passengers, "to carpool today")
print("We need to put about", average_passenger_per_car, "in each car")结果：
Day5
更多的变量和打印
代码：
my_name = 'Zed A. Shaw'
my_age = 35 # not a lie
my_height = 74 # inches
my_weight = 200 # libs
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 ara usually %s depending on the coffee." % my_teeth)
#this line is tricky,try to get 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 ))结果：
Day6
字符串和文本
代码：
x ="There are %d type of people." % 10
binary = "binary"
do_not = "don't"
y = "Those who know %s and those who %s." % (binary, do_not)
print(x)
print(y)
print("I said: %r." % x)
print("I also said: '%s'." % y)
hilarious = False
joke_evaluation = "Isn't that joke so funny?! %r"
print(joke_evaluation % hilarious)
w = "This is the left side of..."
e = "a string with a right side."
print(w + e)结果：
Day7
更多打印
代码：
print("Mary had a littile lamb")
print("Its fleece was white as %s." % 'snow')
print("And everywhere that Mary went.")
print("." * 10) #what's that do?
end1 = "C"
end2 = "h"
end3 = "e"
end4 = "e"
end5 = "s"
end6 = "e"
end7 = "b"
end8 = "u"
end9 = "r"
end10 = "g"
end11 = "11"
end12 = "r"
# watch that comma at the end. try removing it to see what happens
print(end1 + end2 + end3 + end4 + end5 +end6 +
" " + end7 + end8 + end9 + end10 + end11 + end12)结果：
Day8
打印，打印
代码：
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.")
)结果：
Day9
打印，打印，打印
代码：
# Here's some new strange stuff,remember type it exactly.
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.
""")结果：
Day10
Day9的用法是什么？
代码：
tabby_cat ="\ti'm tabbed in."
persian_cat = "I'm split\non a line"
backslash_cat = "I'm \\ a \\ cat"
fat_cat = """
I'll do a list:
\t* Cat food
\t* Fishies
\t* Catnip\n\t* Grass
"""
print(tabby_cat)
print(persian_cat)
print(backslash_cat)
print(fat_cat)结果：
