1, the python data into variable data (list, set, Dictionary) and immutable data (number, string, tuple)
in value or may detect whether or not in the list or dictionary; while dictionaries are checked prior to each use is cumbersome () method can save time with a get
The list has the following methods:
() Index: a pass value if the restructuring present in the list, it returns the following table
append (): value added at the end of the list
insert (): added value at the beginning of the list
remove (): Delete the value from the list, multiple occurrences delete only once
sort (): the value of the sorted list, and sorting is now directly change the order of the list, the return value need not be recorded
The dictionary has the following methods:
key (), values (), items (): returns a list similar to values corresponding key value, key - value; as to obtain a real list, a list of similar values put return value to the function list
get (): value from the dictionary, there are two parameters, the first parameter value is to be retrieved, the second parameter value is returned if the standby key does not exist.
setdefault (): Check whether there is a key, a first parameter is the key to check the second parameter value to be set is the time to check if the bond is absent.
String has the following methods: