Python学习

 1 >>> def create_empty_list():
 2     return []
 3 
 4 >>> def create_common_list():
 5     return [‘a‘,‘b‘,‘c‘,1,3,5]
 6 
 7 >>> def create_common_list2():
 8     return [x for x in range(1,10)]
 9 
10 >>> def str_to_list(s):
11     if s != None:
12         return list(s)
13     else:
14         return []
15 
16     
17 >>> def main():
18     test_listA = create_empty_list()
19     print(test_listA)
20     print(‘#‘*50)
21     test_listB = create_common_list()
22     print(test_listB)
23     print(‘#‘*50)
24     test_listC = create_common_list2()
25     print(test_listC)
26     print(‘#‘*50)
27     test_str = ‘ i want to talk‘
28     test_listD = str_to_list(test_str)
29     print(test_listD)
30 
31     
32 >>> if __name__ == ‘__main__‘:
33     main ()

>>> counter = 100
>>> miles = 1000.0
>>> name = "minglang"
>>> numberA,numberB,nameC = 1,2,"Minglang"
>>> list = [counter,miles,name,numberA,numberB,nameC]
>>> print (list)
[100, 1000.0, ‘minglang‘, 1, 2, ‘Minglang‘]
>>> #注释用"#"
>>> for element in list:
    print(element)

    
100
1000.0
minglang
1
2
Minglang
>>> print (list[0]) #获取列表list里的第一个元素值
100
>>> print (list[-1]) #获取列表list最后一个元素
Minglang
>>> print (len(list)) #list列表的长度
6
>>> num_inc_list = range(10)
>>> print (num_inc_list)
range(0, 10)
>>> for inc_list in num_inc_list:
    print(inc_list)

    
0
1
2
3
4
5
6
7
8
9
>>>