程序代码

print("Let's practice everything.")
print('You\'d need to know \'about eacapes with \\ that do:')
print('\n newlines and \t tabs.')

poem ="""
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explanation
\n\t\twhere there is none.
"""

print("--------------")
print(poem)
print("--------------")


five = 10 - 2 + 3 - 6
print(f"This should be five:{five}")

def secret_formla(started):
    jelly_beans = started * 500
    jars = jelly_beans / 1000
    crates = jars / 100
    return jelly_beans, jars, crates


start_point = 10000
beans, jars, crates = secret_formla(start_point)

# remenber that this is another way to format a string
print("With a starting point of:{}".format(start_point))
# it's just like with an f"" string
print(f"We'd have {beans}beans, {jars}jars, and {crates} crates.")

start_point = start_point / 10

print("We can also do that this way:")
formula = secret_formla(start_point)
# this is an easy way to  apply a list to a format string
print("We'd have {} beans, {} jars, and {} crates.".format(*formula))

输出结果

Let's practice everything.
You'd need to know 'about eacapes with \ that do:

 newlines and    tabs.
--------------

        The lovely world
with logic so firmly planted
cannot discern
 the needs of love
nor comprehend passion from intuition
and requires an explanation

                where there is none.

--------------
This should be five:5
With a starting point of:10000
We'd have 5000000beans, 5000.0jars, and 50.0 crates.
We can also do that this way:
We'd have 500000.0 beans, 500.0 jars, and 5.0 crates.