import sys
import os
class pathutil(object):
  """路徑處理工具類"""
  def __init__(self):
    # 判斷調(diào)試模式
    debug_vars = dict((a, b) for a, b in os.environ.items()
             if a.find('IPYTHONENABLE') >= 0)
    # 根據(jù)不同場景獲取根目錄
    if len(debug_vars) > 0:
      """當(dāng)前為debug運行時"""
      self.rootPath = sys.path[2]
    elif getattr(sys, 'frozen', False):
      """當(dāng)前為exe運行時"""
      self.rootPath = os.getcwd()
    else:
      """正常執(zhí)行"""
      self.rootPath = sys.path[1]
    # 替換斜杠
    self.rootPath = self.rootPath.replace("\\", "/")
  def getPathFromResources(self, fileName):
    """按照文件名拼接資源文件路徑"""
    filePath = "%s/resources/%s" % (self.rootPath, fileName)
    return filePath
PathUtil = pathutil()
if __name__ == '__main__':
  """測試"""
  # path = PathUtil.getPathFromResources("context.ini")
  print(PathUtil.rootPath)

import os

print '***獲取當(dāng)前目錄***'
print os.getcwd()
print os.path.abspath(os.path.dirname(__file__))
# __file__ 為當(dāng)前文件, 若果在ide中運行此行會報錯,可改為 #d = path.dirname('.') 
# 但是改為.后，就是獲得當(dāng)前目錄，接著使用dirname函數(shù)訪問上級目錄
print '***獲取上級目錄***'
print os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
print os.path.abspath(os.path.dirname(os.getcwd()))
print os.path.abspath(os.path.join(os.getcwd(), ".."))
print '***獲取上上級目錄***'
print os.path.abspath(os.path.join(os.getcwd(), "../.."))