Question

我是python的新手，这是我朋友发送给我的一些代码，这是Quine-McCluskey算法，提供了获得最小项的答案，代码虽然很简单，但是因为我不是Python程序员没有解决这个问题的主意

def find_minimum_cost(Chart, unchecked):
P_final = []
#essential_prime = list with terms with only one 1 (Essential Prime Implicants)
essential_prime = find_prime(Chart)
essential_prime = remove_redundant_list(essential_prime)

#print out the essential primes
if len(essential_prime)>0:
    s = "\nEssential Prime Implicants :\n"
    for i in range(len(unchecked)):
        for j in essential_prime:
            if j == i:
                s= s+binary_to_letter(unchecked[i])+' , '
    print s[:(len(s)-3)] #ERROR  <-------- 

#modifiy the chart to exclude the covered terms
for i in range(len(essential_prime)):
    for col in range(len(Chart[0])):
        if Chart[essential_prime[i]][col] == 1:
            for row in range(len(Chart)):
                Chart[row][col] = 0

-

File "C:\Users\Lenovo\Desktop\main.py", line 204
  print s[:(len(s)-3)]
        ^
SyntaxError: invalid syntax

此行中有错误：print s [:( len（s）-3）]

Answer 1

最初的作者打算使用python2解释器执行该程序。他写道（大致）：

print s

要使用现代python3解释器执行，您将需要：

print(s)

无效的语法错误：Python中的Quine McCluskey算法

1 个答案: