这是一个我想尝试的练习,因为我觉得它很有趣。这个练习对于它正在做的事情来说是不必要的复杂,但是它试图在更复杂的python程序中理解类,函数和变量行为。
import os
class grabFile:
fileObject = None
def __init__(self, filename):
self.fileObject = open(filename, "r")
def getFile():
return self.fileObject
class counter:
fileC = None
lineCount = 0
def __init__(self, fileObject):
self.fileC = fileObject
def lineCounter(self):
while True:
self.fileC.readline()
print(x)
return lineCount
def Main():
fileGrabber = grabFile("test.txt")
fileObj = fileGrabber.getFile
countObj = counter(fileObj)
lineCount = countObj.lineCounter()
print(lineCount)
Main()
但是,当我运行它时,我收到以下错误:
Traceback (most recent call last):
File "/home/may/Desktop/Tree/Programming/MiscProjects/TextAnalyzer.py", line 32, in <module>
Main()
File "/home/may/Desktop/Tree/Programming/MiscProjects/TextAnalyzer.py", line 29, in Main
lineCount = countObj.lineCounter()
File "/home/may/Desktop/Tree/Programming/MiscProjects/TextAnalyzer.py", line 19, in lineCounter
self.fileC.readline()
AttributeError: 'function' object has no attribute 'readline'
[Finished in 0.2s with exit code 1]
任何人都可以帮助我完全理解这个程序吗?而且,虽然这不是正确的问题,但对程序的样式或格式提出任何批评?特别是使用“自我”。
谢谢!
答案 0 :(得分:3)
我认为您打算调用该方法:
fileObj = fileGrabber.getFile()
您需要更改为实例方法:
def getFile(self):
return self.fileObject
你的行计数器方法需要做一些工作:
def lineCounter(self):
self.lineCount = len(self.fileC.readlines())
return self.lineCount