排序

x = [3,4,0,2,1]
y = sorted(x)
print y
# output : 0 1 2 3 4
print x
# output : 3 4 0 2 1

x.sort()
print x
#  output : 0 1 2 3 4

x.reverse()
print x
#  output : 4 3 2 1 0


shiyang6017
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