The combination of basic types of connections and the way they convert to each other in Python
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The update method is very common.
1. Concatenate two strings
A = "hello" b = "world" a + = b print (a) # hello world
two。 The connection of the dictionary
Dict1 = {1: "a", 2: "b"} dict2 = {3: "c", 4: "d"} dict1.update (dict2) print (dict1) # {1:'a', 2: 'baked, 3:' C', 4:'d'}
3. Connection to the list
List1 = [1,2,3] list2 = [4,5,6] list1.extend (list2) # [1,2,3,4,5,6] print (list1)
4. Connection of tuples
Tuple1 = (1,2) tuple2 = (3,4) tuple1 + = tuple2 print (tuple1) # (1,2,3,4)
5. Convert dictionaries to strings
Dict1 = {1: "a", 2: "b"} str1 = str (dict1) print (str1) # {1:'a', 2:'b'} print (type (str1)) #
6. Convert dictionaries to lists
Dict1 = {1: "a", 2: "b"} list1 = list (dict1.keys ()) list2 = list (dict1.values ()) list3 = list (dict1) print (list1) # [1mai 2] print (list2) # ['ajar,' b'] print (list3) # [1J2]
7. Convert dictionary to tuple
Dict1 = {1: "a", 2: "b"} tuple1 = tuple (dict1.keys ()) tuple2 = tuple (dict1.values ()) tuple3 = tuple (dict1) print (tuple1) # (1,2) print (tuple2) # ('await,' b') print (tuple3) # (1,2)
8. Convert list to string
List1 = [1,2,3] str1 = str (list1) print (str1) # [1,2,3] print (type (str1)) #
9. Convert a list to a dictionary
# 1. List1 = [1, 2, 3] list2 = ["a", "b", "c"] dict1 = dict (zip (list1, list2)) print (dict1) # {1: 'for i in list1, 2:' baked, 3:'c'} # 2. Dict1 = {} for i in list1: dict1 [I] = list2 [list1.index (I)] print (dict1) # {1: 'ajar, 2:' b' 3:'c'} # 3. List1 = [[1,'a'], [2,'b'], [3,'c']] dict1 = dict (list1) print (dict1) # {1:'a', 2: 'baked, 3:' c'}
10. Convert list to tuple
List1 = [1,2,3] tuple1 = tuple (list1) print (tuple1) # (1,2,3)
11. Convert tuples to strings
Tuple1 = (1,2,3) str1 = tuple (tuple1) print (str1) # (1,2,3) print (type (str1)) #
twelve。 Convert tuples to dictionaries
# 1. Tuple1 = (1,2,3) tuple2 = (4,5,6) dict1 = dict (zip (tuple1, tuple2)) print (dict1) # {1: 4,2: 5,3: 6} # 2 dict1 = {} for i in tuple1: dict1 [I] = tuple2 [tuple1.index (I)] print (dict1) # {1: 4,2: 5,3: 6} # tuple1 = (1,2) tuple2 = (4,5) tuple3 = (tuple1 Tuple2) dict1 = dict (tuple3) print (dict1) # {1: 2, 4: 5}
13. Convert tuples to lists
Tuple1 = (1,2) list1 = list (tuple1) print (list1) # [1,2] "combination of basic types of connections and ways to convert each other in Python" ends here. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!
