读取文件内容

利用for循环按行读取文件

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import sys   input_file = sys.argv[1] fileread = open(input_file, 'r', encoding='UTF-8') line_number = 0 for a in fileread:     line_number += 1     print(line_number, a, end='\r') fileread.close()

encoding=‘UTF-8’ 可以避免出现如下错误：

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1	UnicodeDecodeError: 'gbk' codec can't decode byte 0x81 in position 282: illegal multibyte sequence

利用while循环读取，按行读取文件

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import sys   input_file = sys.argv[1] fileread = open(input_file, 'r', encoding='UTF-8') line_number = 0 while True:     line_number += 1     line = fileread.readline()     if line == '':         break     print(line_number, line, end='\r') fileread.close()