擅长:python、mysql、java
<pre><code>with open('471220580.txt') as text_file:
all_numbers = text_file.read().split("\n")
all_numbers = filter(None, all_numbers)
#the all_numbers list contains all the distinct values from the file
#Now to initialize various variables you can use following methods:
#Method1:
NELEM = all_numbers[0]
NPION = all_numbers[1]
#and so on ...
#Note: Keep in mind that the values stored in these variables is of type str
#Method2:
NELEM, NIPON ,... = all_numbers
</code></pre>
<p>与<code>Method1</code>相比,使用<code>Method1</code>的优点是可以在method1中使用类型转换,而实现这一点的方法是使用<code>var1 = type(var)</code></p>
^{pr2}$
<p>对于构成矩阵的第9-12行,我们可以将矩阵表示为列表列表。在</p>
^{3}$