original_list = [11, 77, 33, 55, 33, 55, 77, 99, 44, 77]
unique_list = list(set(original_list))
print(unique_list)  # 輸出可能為: [33, 99, 11, 44, 77, 55]

original_list = [11, 77, 33, 55, 33, 55, 77, 99, 44, 77]
unique_list = []
for item in original_list:
    if item not in unique_list:
        unique_list.append(item)
print(unique_list)  # 輸出: [11, 77, 33, 55, 99, 44]

original_list = [11, 77, 33, 55, 33, 55, 77, 99, 44, 77]
for num in original_list.copy():
    if original_list.count(num) > 1:
        original_list.remove(num)
print(original_list)  # 輸出: [33, 55, 99, 44, 77]

original_list = [11, 22, 33, 44, 44, 44, 44, 33, 22, 11]
i = 0
while i < len(original_list):
    j = i + 1
    while j < len(original_list):
        if original_list[i] == original_list[j]:
            original_list.pop(j)
        else:
            j += 1
    i += 1
print(original_list)  # 輸出: [11, 22, 33, 44]

# Python 3.7+保持順序版
unique = list(dict.fromkeys(original_list))

# 復(fù)雜對(duì)象去重（根據(jù)id字段）
seen = set()
unique = [x for x in original_list if not (x['id'] in seen or seen.add(x['id']))]

# 錯(cuò)誤示范！
for item in original_list:  # 直接遍歷原列表
    if original_list.count(item) > 1:
        original_list.remove(item)  # 會(huì)導(dǎo)致元素跳過

# 使用生成器節(jié)省內(nèi)存
def dedupe(items):
    seen = set()
    for item in items:
        if item not in seen:
            yield item
            seen.add(item)
 
unique = list(dedupe(original_list))

# 根據(jù)字典鍵去重
unique = {frozenset(item.items()): item for item in original_list}.values()