name_list = ['zhangsan','lisi','wangermazi','xiaotaoqi']print(name_list)# name_list.append("william")# ['zhangsan', 'lisi', 'wangermazi', 'xiaotaoqi', 'william']# count = name_list.count('lisi')# print("count=",count)# count=1# name_list2 = ['william','alex']# name_list.extend(name_list2)# ['zhangsan', 'lisi', 'wangermazi', 'xiaotaoqi', 'william', 'alex']# name_index = name_list.index("xiaotaoqi")# print("name_index=",name_index)# # name_index= 3## name_index = name_list.index("xiaotaoqi1")# print("name_index=",name_index)# print(name_list)## Traceback (most recent call last):#   File "C:/Users/Python-learn/list_test.py", line 14, in 
     
      #     name_index = name_list.index("xiaotaoqi1")# ValueError: 'xiaotaoqi1' is not in list# name_list.insert(2,"William")# ['zhangsan', 'lisi', 'William', 'wangermazi', 'xiaotaoqi']# name_list.pop()# ['zhangsan', 'lisi', 'wangermazi']# name_list.pop(2)# ['zhangsan', 'lisi', 'xiaotaoqi']# name_list.remove("lisi")# ['zhangsan', 'wangermazi', 'xiaotaoqi']# name_list.reverse()# ['xiaotaoqi', 'wangermazi', 'lisi', 'zhangsan']num_list = [1,3,6,1,2,9,4,5,3]# print(name_list.__add__(num_list))# ['zhangsan', 'lisi', 'wangermazi', 'xiaotaoqi', 1, 3, 6, 1, 2, 9, 4, 5, 3]print(name_list.__contains__("lisi"))# True# print(name_list.__delitem__(2))# ['zhangsan', 'lisi', 'xiaotaoqi']print(name_list.__de)print(name_list)