浅谈python在提示符下使用open打开文件失败的原因及解决方法

>>>open(\'d:\\456.txt\')

Traceback (most recent call last):
 File \"<pyshell#0>\", line 1, in <module>
  open(\'d:\\456.txt\')
IOError: [Errno 2] No such file or directory: \'d:..txt\'

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>>>t= open(\'d:\\456.txt\',\'r\')

Traceback (most recent call last):
 File \"<pyshell#1>\", line 1, in <module>
  t= open(\'d:\\456.txt\',\'r\')
IOError: [Errno 2] No such file or directory: \'d:..txt\'