1.删除重复value
我的写法：
# 删除重复value
numbers = [2, 2, 4, 6, 3, 4, 6, 1]
nums = []
numbers.sort()
print(numbers)
for value in numbers:
if nums.count(value) == 0:
nums.append(value)
else:
continue
print(nums)
案例写法：
# 删除重复value
numbers = [2, 2, 4, 6, 3, 4, 6, 1]
nums = []
for value in numbers:
if value not in nums:
nums.append(value)
print(nums)
