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有时候希望获取一个文本文件的所有内容,但又不希望有打开文件、读文件、关闭文件这些繁琐的步骤,因此需要用一个小程序把这几个步骤封装起来,一句话完成所需要的获取文件内容的操作。为此,这里给出一个示例代码。
代码如下(get_text_file.py):
#! /usr/bin/env python import os ''' get all the content of the file of the specified text file. input: filename - the filename of the text file return: content - string. all the content of filename. if the filename not a valid regular file, then return none, and error information is printed. ''' def get_text_file(filename): if not os.path.exists(filename): print("error: file not exit: %s" % (filename)) return none if not os.path.isfile(filename): print("error: %s not a filename." % (filename)) return none f = open(filename, "r") content = f.read() f.close() return content
>>> import get_text_file >>> content = get_text_file.get_text_file("./get_text_file.py") >>> print(content) #! /usr/bin/env python import os def get_text_file(filename): if not os.path.exists(filename): print("error: file not exit: %s" % (filename)) return none if not os.path.isfile(filename): print("error: %s not a filename." % (filename)) return none f = open(filename, "r") content = f.read() f.close() return content >>> content = get_text_file.get_text_file("not_exist_filename") error: file not exit: not_exist_filename >>> exit()
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