python選擇排序算法實例總結

 　　本文實例總結了python選擇排序算法。分享給大家供大家參考。具體如下：

　　代碼1：

　　?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 def ssort(V): #V is the list to be sorted j = 0 #j is the "current" ordered position, starting with the first one in the list while j != len(V): #this is the replacing that ends when it reaches the end of the list for i in range(j, len(V)): #here it replaces the minor value that it finds with j position if V[i] < V[j]: #but it does it for every value minor than position j V[j],V[i] = V[i],V[j] j = j+1 #and here's the addiction that limits the verification to only the next values return V

　　代碼2：

　　?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 def selection_sort(list): l=list[:] # create a copy of the list sorted=[] # this new list will hold the results while len(l): # while there are elements to sort... lowest=l[0] # create a variable to identify lowest for x in l: # and check every item in the list... if x<lowest: # to see if it might be lower. lowest=x sorted.append(lowest) # add the lowest one to the new list l.remove(lowest) # and delete it from the old one return sorted

　　代碼3

　　?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 a=input("Enter the length of the list :") # too ask the user length of the list l=[] # take a emty list for g in range (a): # for append the values from user b=input("Enter the element :") # to ask the user to give list values l.append(b) # to append a values in a empty list l print "The given eliments list is",l for i in range (len(l)): # to repeat the loop take length of l index=i # to store the values i in string index num=l[i] # to take first value in list and store in num for j in range(i+1,len(l)): # to find out the small value in a list read all values if num>l[j]: # to compare two values which store in num and list index=j # to store the small value of the loop j in index num=l[j] # to store small charecter are value in num tem=l[i] # to swap the list take the temparary list stor list vlaues l[i]=l[index] # to take first value as another l[index]=tem print "After the swping the list by selection sort is",l

　　希望本文所述對大家的Python程序設計有所幫助。