Question

在＆＃34;学习Python艰难之路的网站上＃34;有运动24，我不明白。以下是作者希望我写下来的代码。

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 "--------------"
print poem
print "--------------"


five = 10 - 2 + 3 - 6
print "This should be five: %s" % five

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


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

print "With a starting point of: %d" % start_point
print "We'd have %d beans, %d jars, and %d crates." % (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)

结果如下：

$ python ex24.py
Let's practice everything.
You'd need to know 'bout escapes 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 5000000 beans, 5000 jars, and 50 crates.
We can also do that this way:
We'd have 500000 beans, 500 jars, and 5 crates.

这是否意味着start_point变量替换了函数的started变量？另外，函数的（）括号中是否有变量的特定名称？为了澄清，在secretformula(started)中，started只是一个常规变量或具有单独的名称。对不起，如果这很明显（我是菜鸟）。

Answer 1

这是否意味着start_point变量取代了＆＃34;已启动＆＃34;变量的功能？

参数是如何工作的，是的。但您可以说，started被赋予start_point的值。

函数的（）括号中的变量是否有特定名称

不在代码中，没有。该名称仅提高了对开发人员的可读性

in＆＃34; secretformula（已启动）＆＃34;，将＆＃34;开始＆＃34;只是一个常规变量或具有单独的名称

它是该引号中的参数，它是secret_formula(start_point)

期间的变量

＆＃34;学习Python艰难的方式＆＃34; Ex24.py

1 个答案: