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# python实现选择排序算法

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python实现选择排序算法

```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
```

```

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            # 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
```

```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
```

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