Python — list 类
Python list类常用方法 class list(object): def append(self, p_object): # 向列表中添加元素； >>> name_list ['shuoming', 'python', 'search'] >>> name_list.append("python") >>> name_list ['shuoming', 'python', 'search', 'python'] def clear(self): # 清除列表所有元素，清除后列表为空列表； >>> test_list ['shuoming', 'python', 'search', 'python', 'automatic', 1, 2] >>> test_list.clear() >>> test_list [] >>> def copy(self): def count(self, value): # 列表中指定元素的个数； >>> name_list.count("python") 2 def extend(self, iterable): 把一个列表添加到另一个列表中； >>> a [1, 7, 2, 9, 3, 8, 'a', 'b'] >>> b=[2,'f',3] >>> a+b [1, 7, 2, 9, 3, 8, 'a', 'b', 2, 'f', 3] >>> a.extend(b) >>> a [1, 7, 2, 9, 3, 8, 'a', 'b', 2, 'f', 3] >>> def index(self, value, start=None, stop=None): # 查列表中某一元素第一个索引值； >>> name_list.index("python") 1 def insert(self, index, p_object): # 向列表中插入某一元素； >>> name_list.insert(3,"python") >>> name_list ['shuoming', 'python', 'search', 'python', 'python'] def pop(self, index=None): # 从列表最后删除元素； >>> last_one = name_list.pop() >>> last_one 'python' >>> name_list ['shuoming', 'python', 'search', 'python'] def remove(self, value): # 删除某一元素，默认是指定元素的第一个值； >>> name_list.remove('python') >>> name_list ['shuoming', 'search', 'python'] def reverse(self): # 翻转； >>> name_list ['shuoming', 'search', 'python', '@', '$'] >>> name_list.reverse() >>> name_list ['$', '@', 'python', 'search', 'shuoming'] def sort(self, key=None, reverse=False): # 排序，特殊字符在前； >>> name_list ['shuoming', 'search', 'python', '@', '$'] >>> name_list.sort() >>> print (name_list) ['$', '@', 'python', 'search', 'shuoming']
