python3_列表

# -*- coding: utf-8 -*-class ShowList(object):    def __init__(self):        self.L1 = []        self.L2 = []        self.createList()        self.insertData()        self.appendData()        self.deleteData()        self.subList()    def createList(self):        print("创建列表：")        print("L1 = list('abcdefg')")        self.L1 = list('abcdefg')        print("L2 = []")        print("for i in xrange(0,10):")        print("\tL2.append(i)")        for i in range(0, 10):            self.L2.append(i)        print("L1 = "),        print(self.L1)        print("L2 = "),        print(self.L2)        print('\n')    def insertData(self):        print(u"插入数据")        print(u"L1列表中第3个位置插入数字100，执行命令：L1.insert(3,100)")        self.L1.insert(3, 100)        print("L1 = "),        print(self.L1)        print(u"L2列表中第10个位置插入字符串'python'，执行命令：L2.insert(10,'python')")        self.L2.insert(10, 'python')        print("L2 = "),        print(self.L2)        print('\n')    def appendData(self):        print(u"追加数据")        print(u"L1列表尾追加一个列表[1,2,3]，执行命令L1.append([1,2,3]")        self.L1.append([1, 2, 3])        print("L1 = "),        print(self.L1)        print(u"L2列表尾追加一个元组('a','b','c')，执行命令L1.append(('a','b','c')")        self.L2.append(('a', 'b', 'c'))        print("L2 = "),        print(self.L2)        print('\n')    def deleteData(self):        print(u"删除数据")        print(u"删除L1的最后一个元素，执行命令L1.pop()")        self.L1.pop()        print("L1 = "),        print(self.L1)        print(u"删除L1的第1个元素，执行命令L1.pop(0)")        self.L1.pop(0)        print("L1 = "),        print(self.L1)        print(u"删除L2的第4个元素，执行命令L1.pop(3)")        self.L2.pop(3)        print("L2 = "),        print(self.L2)        print('\n')    def subList(self):        print(u"列表分片")        print(u"取列表L1的第3到最后一个元素组成的新列表，执行命令L1[2:]")        print(self.L1[2:])        print(u"取列表L2的第2个到倒数第2个元素组成的新列表，步长为2，执行命令L2[1:-1:2]")        print(self.L2[1:-1:2])        print('\n')if __name__ == '__main__':    print("演示列表操作：\n")    sl = ShowList()