python插入排序算法实例分析

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

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