力扣第一题-两数之和-python

class Solution(object):
    def twoSum( self,nums, target):
        j = len(nums) - 1
        while j >= 0:
            i = len(nums) - 1
            while (i >= 0):
                if (nums[j] + nums[i] == target) and i!=j:
                    if(j<i):
                        return [j, i]
                    else:
                        return [i,j]
                else:
                    i = i - 1

            j = j - 1