字符串，列表，元组，字典间的互相转换

1.字符串转换为元组

s = "Marry"
list(s)

2.字符串转换为列表

s = "Marry"
list(s)

3.列表转换为元组

l = "Marry"
list(l)

4.元组转换为列表

tu = "Marry"
list(tu)

5.两个列表转换为字典表

li_1=[k1,k2,k3]

li_2=[v2,v2,v3]

dict(zip(li_1,li_2))

6.嵌套列表转换为字典表，有两种方法，

>>>new_list= [['key1','value1'],['key2','value2'],['key3','value3']]

>>>dict(list)

{'key3': 'value3', 'key2': 'value2', 'key1': 'value1'}

或者这样：

>>>new_list= [['key1','value1'],['key2','value2'],['key3','value3']]

>>>new_dict = {}

>>> for i in new_list:

...   new_dict[i[0]] = i[1]                #字典赋值，左边为key，右边为value

...

>>> new_dict

{'key3': 'value3', 'key2': 'value2', 'key1': 'value1'}

7.字典表转换为元组

dic={'k1': 'v1', 'k2': 'v2', 'k3': 'v3'}

tuple(dic)

8.字典表转换为列表

#列表生成器li = [i for i in range(100)]

dic={'k1':'v1', 'k2':'v2','k3':'v3'}
[[i,dic[i]] for i in dic]