练习代码如下
# coding: utf-8
__author__ = 'www.py3study.com'
print("Let's practice everything.")
print("You\'d need to know \'bout escapes with \\ that do \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('-'*50)
print(poem)
print('-'*50)
five = 10 - 2 + 3 - 6
print("This should be five:{}".format(five))
def secret_formula(started):
jelly_beans = started * 500
jars = jelly_beans / 1000
crates = jars / 100
return jelly_beans, jars, crates
started_point = 10000
print(secret_formula(started_point))
beans, jars, crates = secret_formula(started_point)
print("With a starting point of:{}".format(started_point))
print("We'd have {} beans, {} jars, and {} crates.".format(beans, jars, crates))
start_point = started_point / 10
print("We can also do that this way:")
print("We'd have %d beans, %d jars, and %d crates." % secret_formula(start_point))应该看到的结果
常见问题
为什么你在后面把jelly_beans这个变量名又叫成了beans?
这是函数的工作原理，记住函数内部的变量都是临时的，当你的函数返回以后，返回值可以被赋予一个变量，这里是创建了一个新变量，用来存放函数的返回值
