异度部落格

'''
Created on 2011-8-3

@author: Killua
@E-mail:[email protected]
@Description:
'''
#!/usr/bin/env python3

import os

#使用 os.path 模块处理文件名
def file_path_info(filename):
    print("OS:" + os.name)
    print("split:", os.path.split(filename))
    print("splitext:", os.path.splitext(filename))
    print("dirname:", os.path.basename(filename))
    print("basename:" + os.path.basename(filename))

#使用 os.path 搜索文件系统
def list_files(directory):
    stack = [directory]
    files = []
    while stack:
        directory = stack.pop()
        for file in os.listdir(directory):
            fullname = os.path.join(directory, file)
            files.append(fullname)
            if os.path.isdir(fullname) and not os.path.islink(fullname):
                stack.append(fullname)
    #List Files
    for file in files:
        print(file)

def main():
    #Just For Test
    #file_path_info("~/Workspace/MyProject/src/os_path_demo/os_path_demo.py")
    list_files("/home/killua")

if __name__ == "__main__":
    main()

'''
Created on 2011-8-1

@author: Killua
@E-mail:[email protected]
@Description:
'''

#!/usr/bin/env python3

import os
import time

#使用os模块进行文本替换
def context_replace(file, search_for, replace_with, new_file = 'new_file'):
    try:
        #remove old temp
        os.remove(new_file)
    except os.error:
        pass

    #open files
    fi = open(file)
    fo = open(new_file, 'w')

    #replace context
    for line in fi.readlines():
        fo.write(line.replace(search_for, replace_with))

    #close files
    fi.close()
    fo.close()

#使用 os 列出目录下的文件
def file_list(filepath):
    for filename in os.listdir(filepath):
        print(filename)

#使用 os 模块查看当前工作目录
def current_word_dir():
    print("Currnet Directory:" + os.getcwd())

#使用 os 模块创建/删除目录
def make_dir(dir_name):
    os.mkdir(dir_name)

def delete_dir(dir_name):
    if not os.path.isdir(dir_name):
        print("It's not a directory")
        return
    else:
        if len(os.listdir(dir_name)) == 0:
            os.rmdir(dir_name)
        else:
            print("The directory you want to delete is not empty,")

#使用 os 模块获取文件属性
def get_file_info(filename):
    file_state = os.stat(filename)
    mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime = file_state
    print("size:", size, "bytes")
    print("owner:", uid, gid)
    print("created:", time.ctime(ctime))
    print("last accessed:", time.ctime(atime))
    print("last modified:", time.ctime(mtime))
    print("mode:", oct(mode))
    print("inode/dev", ino, dev)

#使用 os 执行操作系统命令
def os_command_excute(cmd):
    os_name = os.name
    if os_name == "nt":
        print("Windows Command")
    else:
        print("Unix/Linux Command")
    os.system(cmd)

#Test
def main():
    #===Just For Test===
    #context_replace("sample", 'a', 'A')
    #file_list('/')
    #current_word_dir()
    #make_dir('sample_dir')
    #delete_dir('sample_dir')
    #get_file_info("sample")
    os_command_excute("ls -l")

if __name__ == "__main__":
    main()

#-------------------------------------------------------------------------------
# Name:            BinarySequence.py
# Purpose:
#
# Author:         Killua
#
# Created:       17/04/2011
# Copyright:    (c) Killua 2011
# Licence:       <your licence>
#-------------------------------------------------------------------------------
#!/usr/bin/env python
def BinarySequence(lastColumn):
      n = len(lastColumn);
      M = ['0'*n for i in range(n)]; #初始化一个空矩阵
      #将最后一列赋值给矩阵
      for i in range(n):
            M[i] = M[i][:n-1] + lastColumn[i];
      #循环移位排序n-1次
      for i in range(n-1):
            #循环移位
            for j in range(n):
                  M[j] = lastColumn[j] + M[j][:n-1];
            #排序
            M.sort();
            #最后一列赋回
            for k in range(n):
                  M[k] = M[k][:n-1] + lastColumn[k];
      return M[0];
def main():
      #Test
      lastColumn = "11000";
      res = BinarySequence(lastColumn);
      print("排序后的矩阵第一行:" + res);
if __name__ == '__main__':
      main()