python - 在一个简单的有限状态机中，错误 : 'int' object is not iteratable

Question

我正在尝试创建一个读取状态、转换和字符串的有限状态机。我试图在没有对象的情况下创建它。一切正常，直到我的 for 循环。但是，一旦循环开始，我就会收到错误消息:

line 42, in <module>
    for I in len (Strings):
TypeError: 'int' object is not iterable

为什么会这样？任何提示将不胜感激。

Sfile = open("states.txt","r")
States = []

ReadLine = Sfile.readline()
while ReadLine != "":
    A, B, C = ReadLine.split(",")
    States.append((A, bool(int(B)), bool(int(C))))
    ReadLine = Sfile.readline()
print States, "\n"
Sfile.close()



Tfile = open("transistions.txt","r")
Transitions = []

ReadLine = Tfile.readline()
while ReadLine != "":
    ReadLine = ReadLine.rstrip()
    Tran4, Tran5, Tran6 = ReadLine.split(",")
    Transitions.append((Tran4, Tran5, Tran6))
    ReadLine = Tfile.readline()
print Transitions
Tfile.close()

Strfile = open("strings2.txt","r")
Strings = []

ReadLine = Strfile.readline()
while ReadLine != "":
    Readline = ReadLine.rstrip()
    Strings.append(Readline)
    ReadLine = Strfile.readline()

print Strings, '\n'
Strfile.close()


for I in len (Strings):
       for C in Strings[I]:
           Start = '0'
           Current = Start
           if C in Strings == '0':
                Current = A
           else:
                Current = State

print Current...

我的不同文本文件包含:

• 状态.txt

状态 2,1,0状态 3,0,1状态4,1,0

• transitions.txt

状态1,0,状态2状态2,1,状态3状态3,0,状态4

• strings2.txt

10100101100110010

Answer 1

您不能遍历整数。我认为您的意思是遍历 range 对象 range(len(Strings))。这将起作用，因为 range 对象是可迭代的，而 int 不是。