笨方法学Python 习题24

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本文通过一个具体的Python代码示例，展示了如何使用转义字符、字符串格式化以及定义和调用函数等基本概念。代码中包含了字符串操作、算术运算、函数定义和调用等多个方面，适合初学者理解和实践。

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

poem = """
\t The 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\t where there is none.
"""

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

five = 10-2+3-6
print("This  should be five: {0}".format(five))

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

start_point = 1000
beans, jars, crates = secret_formula(start_point)

print("With a starting point of {0}".format(start_point))
print("We'd have {0} beans, {1} jars, and {2} crates.".format(beans,jars,crates))

start_point = start_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))