Python self study notes

Chapter two

There is no whitespace at the end of the string ：rstrip()
There is no blank at the beginning of the string ：lstrip()
There is no blank space on either side of the string ：strip()

The third chapter ： list

List with [] Express

1. Access list elements
2. Use the values in the list , for example ：bicycles[0].title()
3. Modify list elements ：bicycles[0]=' '
4. Add list elements ：bicycles.append('hola') perhaps bicycles.insert(0,'hola')
5. Delete list elements ：del bicycles[0] perhaps bicycles.pop(), Pop up the last element of the list perhaps bicycles.pop(1) perhaps bicycles.pop(‘hola’)
6. Organization list ： Permutation cars.sort(), Temporary sort cars.sorted(), Reverse sorting cars.sort(reverse=True), Inversion order cars.reverse()
7. Determine the length of the list ：len(cars)

Chapter four ： Operation list

The first 5 Chapter if sentence