「Learn Python The Hard Way」Ex24.py

Question

在「Learn Python The Hard Way」的網站上有練習24，我不明白。以下是作者希望我寫下的代碼。

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) 

這是結果：

$ 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. 

這是否意味着start_point變量替換功能的started變量？另外，函數的（）括號中是否有變量的特定名稱？爲了澄清，在secretformula(started)中，started只是一個常規變量或具有單獨的名稱。對不起，如果這是顯而易見的（我是一個noob）。

Answer 1

這是否意味着start_point變量替換了函數的「啓動」變量？

這就是參數的工作原理，是的。而是你會說，started被分配了值start_point。

是有一種用於在功能

未中的代碼，沒有的（）括號中的變量具有特定名稱。這個名字不僅提高了可讀性開發商

在「secretformula（開始）」，將「開始」僅僅是一個普通的變量或具有一個獨立的名字

這是在報價參數，它是一個變量secret_formula(start_point)