插入排序，python

class insertSort:
    def insert(self,arr):
        for i in range(1,len(arr)):
            for t in range(i):
                if arr[t] <= arr[i]:
                    self.move(arr,t,i)
        return arr
    def move(self, arr, t, i):
        current = 0
        previous = 0
        for y in range(t,i+1):
            current = arr[y]
            arr[y] = previous
            previous = current
        arr[t] = previous
example = [0,-1,0,-1,0,3, 2, 3, 4, 4345, 6, 557, 2, 8768, 7, 0, 8, 435, 3, 3, 1]
obj = insertSort()
print obj.insert(example)