def xuanzepaixu(n):
    length=len(n)
    for i in range(length-1):
        min=n[i]
        for j in range(i+1,length):
            if min>n[j]:
                min=n[j]
                n[i],n[j]=n[j],n[i]
    print(n)
n=[7,8,4,5,6,1,2,3]
xuanzepaixu(n)