摘要：复制：默认浅拷贝对象的引用，原始改变，复制后的也会改变 >>> #复制>>> alist=[7,8,9,["a","b"]]>>> b=alist>>> print(b)[7, 8, 9, ['a', 'b']]>>> alist.append(10)>>> print(alist,b)[7, 8, 阅读全文