A: Python collection of knowledge Overview
Two: Python characteristics, format, and structure of each sequence comparison
Three: Python create a set of collection
Four: The set of common operations - additive element
Five: a collection of common operations - delete an element
Six: a collection of common operations - size statistics, members include, emptying collection
Seven: Inter Set Operations
Eight: the set of built-in functions - copy, add elements, remove elements
Nine: a collection of built-in functions - the relationship between the contents of the collection to determine, inter set operations