《笨》练习5、6、7

5 更多变量和打印

字符串前面加上字母 f （代表 format）， 比如 f"Hello, {somevar}" 。
双引号前面的 f 是为了告诉 python3： “这个字符串需要被格式化，把这些变量放在那儿。”

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

Let's talk about Zed A. Shaw.
He's 74 inches tall.
He's 180 pounds heavy.
Actually that's not too heavy.
He's got Blue eyes and Brown hair.
His teeth are usually White depending on the coffee.

6 字符串和文本

.format()

用.format()括号里的内容，填补前面变量中{}的部分。

例1

hilarious = False
joke_evaluation = "Isn't that joke so funny?! {}"

print(joke_evaluation.format(hilarious))

Isn't that joke so funny?! False

例2

formatter = "{} {} {} {}"

print(formatter.format(1, 2, 3, 4))
print(formatter.format("one", "two", "three", "four"))
print(formatter.format(True, False, False, True))
print(formatter.format(formatter, formatter, formatter, formatter))
print(formatter.format(
"Try your",
"Own text here",
"Maybe a poem",
"Or a song about fear"
))

1 2 3 4
one two three four
True False False True
{} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
Try your Own text here Maybe a poem Or a song about fear

7 更多打印

a 或者 snow 这种比较短的字符串应该用单引号