python插入排序算法实例分析

本文实例讲述了python插入排序算法。分享给大家供大家参考。具体如下：

    def insertsort(array): 
      for removed_index in range(1, len(array)): 
        removed_value = array[removed_index] 
        insert_index = removed_index 
        while insert_index > 0 and array[insert_index - 1] > removed_value: 
          array[insert_index] = array[insert_index - 1] 
          insert_index -= 1 
        array[insert_index] = removed_value

另外一个版本：

    def insertsort(array): 
      for lastsortedelement in range(len(array)-1): 
        checked = lastsortedelement 
        while array[checked] > array[lastsortedelement + 1] and checked >= 0: 
          checked -= 1 
        #Insert the number into the correct position 
        array[checked+1], array[checked+2 : lastsortedelement+2] = array[lastsortedelement+1], array[checked+1 : lastsortedelement+1] 
      return array

希望本文所述对大家的Python程序设计有所帮助。