Question

我很难将2个函数嵌套到更大的函数中，因此函数将打开并读取文件并打印结果。没有错误，但结果显示为None。请告诉我如何改进代码。提前谢谢！

import glob

#Read a result file and return a list
def read_results(filename):
    text_file=open(filename,"r")
    lines=text_file.readlines()
    return lines
    text_file.close()

#Give a list of results files in your directory    
def get_filename():
    filelist=glob.glob("./Data/*.*")
    return filelist

#Call above functions to get file names and read each file
def read_lines(filename):
    def get_filename()
        def read_results(): 
            print lines   

#main
function=read_results("./Data/GSM21203-GSM21215.csv")
print"\nHere's the lines of the text file:", function

#In order to use the strip method, it must be a str. Currently I am not using a         string.     Figure out how to do it

print"\n"

list_of_filenames=get_filename()
print"Here are the list of filenames:",list_of_filenames

read_each_file=read_lines("*.*")
print "Here are the contents of each file",read_each_file

Answer 1

你应该完全重新思考你是如何做到这一点的。您的代码似乎表明您不理解函数在Python中的工作方式。例如，这个：

def read_lines(filename):
    def get_filename()
        def read_results(): 
            print lines

。。。创建三个函数，但不调用任何函数。

首先阅读the Python tutorial。

嵌套函数 - Python

1 个答案: