List, Dictionary, Set 常用的函数

List

• list.remove(value), remove the first one equals to the value in list

• list[index] = list.pop(index), can return or not return, remove by index

• list.append(value), add the value at the end of this list

• list.append(sublist[:]), add sublist to the nested list

• list.extend(list2), flat add list2 to the end of the list

Dictionary

• for key in dic

• for key, value in dic.items()

Set

• set.add(value) 如果要添加的数已存在则无任何操作

• set.remove(value) 如果要移除的数不存在则报错

• set.discard(value) 如果要移除的数不存在则无任何操作