【Python】用文本列印樹

標籤：

From:http://zhidao.baidu.com/link?url=O8U5TynGBMojDw2iFhlghPPf5_ZE1X8CAQMrK19pv-KxhvKCc6Z2yzsoQaukgN2haYudVO7Hg3c0ZvNm8ALcY_

#!/usr/bin/python3# -*- coding: utf-8 -*- def print_tree(tree):    buff = [‘ROOT/‘]    _print_tree(tree, buff, ‘‘, 0)    print(‘\n‘.join(buff)) def _print_tree(tree, buff, prefix, level):    count = len(tree)    for k, v in tree.items():        count -= 1        if v:            buff.append(‘%s +- %s/‘ % (prefix, k))            if count > 0:                _print_tree(v, buff, prefix + ‘ |  ‘, level + 1)            else:                _print_tree(v, buff, prefix + ‘    ‘, level + 1)        else:            buff.append(‘%s +- %s‘ % (prefix, k)) def test():    tree = {        ‘bin‘: { ‘bash‘: None, ‘cat‘: None, ‘cp‘: None, },        ‘etc‘: {            ‘init.d‘: { ‘apache2‘:None, ‘slapd‘:None, ‘sshd‘:None, },            ‘passwd‘: None,            ‘hosts‘: None,        },        ‘var‘: {            ‘log‘: {                ‘apache2‘: { ‘accesslog‘:None, ‘errorlog‘: None, },            },        },    }    print_tree(tree) if __name__ == ‘__main__‘:    test()

輸出

ROOT/ +- etc/ |   +- passwd |   +- init.d/ |   |   +- apache2 |   |   +- sshd |   |   +- slapd |   +- hosts +- bin/ |   +- cp |   +- bash |   +- cat +- var/     +- log/         +- apache2/             +- errorlog             +- accesslog

 

【Python】用文本列印樹