Python数据结构之Array用法实例

本文实例讲述了python数据结构之Array用法，分享给大家供大家参考。具体方法如下：

import ctypes 
 
class Array: 
  def __init__(self, size): 
    assert size > 0, "Array size must be > 0 " 
    self._size = size 
    pyArrayType = ctypes.py_object * size 
    self._elements = pyArrayType() 
    self.clear(None) 
 
  def clear(self, value): 
     for index in range(len(self)): 
       self._elements[index] = value 
 
  def __len__(self): 
    return self._size 
 
  def __getitem__(self, index): 
    assert index >= 0 and index  =0 and  = 0 and index  =0 and  

class Array2D : 
  def __init__(self, numRows, numCols): 
    self._theRows = Array(numCols) 
    for i in range(numCols): 
      self._theRows[i] = Array(numCols) 
 
  def numRows(self): 
    return len(self._theRows) 
 
  def numCols(self): 
    return len(self._theRows[0]) 
 
  def clear(self, value): 
    for row in range(self.numRows): 
      self._theRows[row].clear(value) 
 
  def __getitem__(self, ndxTuple): 
    assert len(ndxTuple) == 2, "the tuple must 2" 
    row = ndxTuple[0] 
    col = ndxTuple[1] 
    assert row>=0 and row  =0 and col = 0 and row  = 0 and col  

希望本文所述对大家的Python程序设计有所帮助。

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